A couple from Fort Worth hope to interest the Sharks in their unique way to swaddle a baby. Other pitches include: a nail salon just for men, a better version of the athletic sock, and a free charging station for mobile phones. Also: Mark and Barbara take entrepreneurs to see their products on display at Target stores.

Barbara and Kevin take part in a demonstration for an innovative way to tie the knot, and a Pittsburgh native gives an update on her prospering business of sugar scrubs. Also: Two young women pitch toys designed to empower the next generation of female engineers and innovators, a family man tries to sell his design for a porcelain coffee mug that is both elegant and functional, and a finer, more precise golf putter is presented to the Sharks.

Two men try to sell the Sharks on their stuffed animals for the bathtub, a dog lover from Los Angeles shows off a wearable pet carrier, and ninja entrepreneurs demonstrate a darts-like card game. Also: a follow-up on a custom bike company based in Dallas, which was invested in by Mark and Barbara during Season 3.

The Sharks consider a business idea for affordable wedding cakes brought to them by a mother and son from Grand Rapids, Mich. Also: a Houston restaurateur with a solution to a common problem encountered while dining out, and an update on a screen repair fix-it kit that Lori invested in during Season 5.

Entrepreneurs include the owner of an all-female golf caddy company, a couple who believe they have come up with a better, safer way for kids to bounce, and a trio who pitch to the Sharks their fun spin on a classic faceware accessory. Also: an update on Mark Cuban's million investment in the Los Angeles Haunted Hayride during Season 4.

An olive oil bar where one can sample oils before purchasing; unique wedding registry idea; a product that can turn a smartphone into a personal security device; boxed wine geared toward millenials; a follow-up on Breathometer.

The Sharks hear a pitch for hypergravity-exercise clothing, as well as a line of products that appeal to fans of facial hair, and a karaoke machine that adds jaw-dropping vocal harmonies to help users sound like their favorite singing stars. Also: belts that are easy for kids to use, and a follow-up on Barbara's Season 5 investment in a company specializing in hand-knitted socks and leg warmers.

Entrepreneurs with military backgrounds have the opportunity to pitch their products. Included: a nonslip-protective glove for CrossFit; an elite canine-training program; a carrying case for men; a bottle opener made from recycled .50 caliber shells.

The Sharks celebrate 100 episodes with a look back at their favorite memories, plus they reveal why they participate on the show, as well as take part in a cake-cutting ceremony and a champagne toast. Also: a mother and son who are concerned with healthy bowels; a plywood alternative for storm protection; organic mini-popcorn created by siblings from Brooklyn; a dairy-free line of plant-based cheeses; and an update on the Living Christmas Company invested in by Mark Cuban during Season 5.

GoPro CEO Nick Woodman is a guest on the panel. Pitches include a farmer's healthier tortilla chip made from fresh-picked sweet corn, and the manufacturer of scented fire logs. Also: an update on Robert Herjavec's Season 5 investment in a company that sells ugly Christmas sweaters.

A Brooklyn man pitches his business of foldable, wheeled luggage; a Texas woman makes soaps, washes and grooming products; a fashionable line of sports apparel for women; a single-serve wine product; an update on some of Lori Grenier's investments.

Products for the holidays are featured, including a stamping kit that proves Santa made a visit. Also: a book and plush toy designed to become a Jewish tradition; an easier way to handle the storage and display of Christmas lights; a 13-year-old girl's device to ease muscle pain; and an update on a Hanukkah tree topper invested in by Daymond John during Season 5.

Three sisters make a pitch for their dating app; an entrepreneur claims to have a solution to a common problem for online shoppers; a former publisher shares her design for a shirt that makes people look skinny; and a pair of Wall Street brokers demonstrate a compact way to eat a bagel. Also: an update on Hamboards, which Robert invested in during Season 5.

Two mountain bikers pitch their cleaning solution for drinking containers; sisters try to add fun to any event with their wearable fabric stickers; a dad from Live Oak. Fla., explains how his vest was inspired by his daughter's winning science project; and a pair of moms claim to have a healthier way to make cookies from scratch. Also: an update on Jason Hanson's Spy Escape and Evasion course, which Daymond John invested in during Season 5.

A San Francisco man brings the Sharks a unique and elegant lighting solution; a duo from Menlo Park, Cal., show up in pajamas to make their pitch for a wearable technology; actor Dean Cain and UFC fighter Urijah Faber endorse an entrepreneur's custom-tailored suits. Also: a complete food bar for canines; and an update on Hold Your Haunches shapewear from Season 5.

Transplanted Parisians offer the Sharks a taste of their grandmother's almond-water recipe; a NYC city duo look for an investment in their eco-friendly pizza box; a San Francisco entrepreneur claims to have come up with a "game changer in real-estate investing"; and cousins from Utah pitch their idea for sanitizing germ-ridden cell phones. Also: an update on GrooveBook, which Kevin O'Leary invested in during Season 5.

A man from Davenport, Fla., seeks an investment in his grass delivery service for pet owners. Also: a device to eliminate clogged sinks; a worry-free way to share lip balm without sharing germs; a climate-control system for beds; and an update on Barbara Corcoran's investment in Tom+Chee from Season 4.

Dog chews made from yak and cow milk are pitched to the Sharks. Other products include colorful lipsticks that are organic; and there's an update on protein-packed nut spreads invested in by Robert and Mark during Season 4.

A Portland, Ore., couple seek financial backing for their customized sandals, which are manufactured in Uganda; a father explains how his daughter inspired him to make a gold-mining bucket; a San Francisco woman pitches a sports bra that she claims is a "fanny pack for your rack"; and the Sharks consider investing in a do-it-yourself kit to develop photos. Also: an update on the Paint Brush Cover from Season 5.

Business ideas and products started by entrepreneurs while they were in college are featured, including a couple who provide microloans to those in need. Also: Interest in a Philadelphia student's scholarship app leads three of the Sharks to walk out of the Tank; and the inventors of Bottle Breacher, which was invested in by Kevin and Mark during Season 6, offer an update.

Everything pitched to the Sharks is made in the U.S. including: custom recruitment clothing for sororities; simple tools which are used to open a Thai coconut and extract the meat; and an invention that can transform a pickup into a "Truck-U-V". Also: an update on a teen who runs a designer bow tie company.

A cattleman from Peoria, Ill., returns to show the Sharks what he has learned about the gourmet meat business since he first appeared on the show during Season 4. Also: a lingerie line that's sewn by women in need; and an update on Barbara Corcoran's Season 6 investment in Pipcorn.

A 14-year old entrepreneur from Spokane, WA, offers her product which gives pet owners a way to videochat with their animals; a New York-based entrepreneur has a hometown t-shirt that has over million in sales; another New Yorker with proprietary software to manage your online and social reputation; and Barbara Corcoran gathers some of her most successful entrepreneurs for a ski getaway.

A mom from Atlanta, GA has the solution to the lost pacifier problem; a beekeeper from Portland, OR wants the Sharks to invest in his hives; a Palm Beach, FL entrepreneur sells customized stuffed animals; two men from Chicago, IL and Indianapolis, IN tout their super-comfortable lightweight running shoes. In addition, Barbara Corcoran follows up with this season's 13-year-old Andrea Hirzel Cao and her mom, Hong Cao, creators of Q Flex.

A sustainable soil replacement for peat moss; a tasty and tantrum-free way to clean messy kids with sweet-flavored face wipes; a safer way to connect electrical wires; a digital text technology for eBooks. Also: an update on H2W Inc. that makes novelty eyewear, which Daymond invested in during Season 6.

Collectible products for celebrity superfans; a mobile app for reserving a barstool on busy nights; a men's clothing line that's all made in America; a high-tech insole created by a former NFL player. Also: an update on Barbara's investment in Pork Barrel BBQ from season 1.

Singer Pat Boone helps to pitch an eco-friendly car that runs on compressed air; a fit mother of three touts the benefits of her diet snack bars; a fisherman offers the Sharks the chance to invest in his unique lure, which helped him earn a world record; and two Cincinnati men look for help growing their eyeglasses business. Also: a follow-up on Lori's investment in Heidi Ho Organics.

A very life-like, synthetic human for medical testing; personalized super hero action figures; an affordable online service to help you quickly achieve a high-end interior room design; a sunscreen full-body misting device; Also, an update on the Squatty Potty, that Barbara Corcoran invested in during Season 6.

GoPro founder Nick Woodman returns to the Tank in the Season 6 finale: a cat lover wants patrons to enjoy adorable rescue cats while relaxing at a cafe; a toy designer has a thrilling all-electric compact vehicle; and is it possible that a duo has reinvented the wheel in the shape of a cube? Also: recaps and updates featuring various entrepreneurs that appeared in Season 6.