A husband and wife from Philadelphia, Pennsylvania, pitch life sized, scientifically accurate, animatronic dinosaurs! An entrepreneur from Los Angeles, California, pitches the virtues of a popular caffeinated Vietnamese beverage. An entrepreneur from Buna, Texas, pitches her beverage coolers. A pair of entrepreneurs from San Andrés, Colombia, and Simpsonville, South Carolina, introduce their tool that helps parents conquer potty training.

An anti-snoring pillow; a chair that converts into a football game; an emotional support doll for dogs; ready-to-eat packaged chicken; Michael Strahan makes his Guest Shark debut.

A cleaning device for homegrown eggs; a reusable paint tray; a line of superfood seasoning; customizable fundraising blankets; Chip and Joanna Gaines make their Guest Shark debut.

Gear for female fighters; an at-home sprout grower; high-protein ice cream bars; an airline for pets and their humans; guest shark Alexis Ohanian.

On-the-go snacking olives; a line of stylish labor gowns and maternity wear; a first-aid kit for kids; healing teas made from flowers; guest shark Allison Ellsworth.

A helmet designed for surfing; snackable pasta chips; 3D-printed string instruments; a signature ramen dish one can make from home.

Home viewers have a chance to weigh in on whether the Sharks should take the plunge and make a deal.

Gwyneth Paltrow guest sharks; a healthier version of a favorite breakfast indulgence; a product designed to keep beverages crisp and cool; a low-calorie superfood alternative; an eco-friendly version of a baby product.

Guest shark Emma Grede; a line of functional apparel and accessories; a healthy superfood product; a way to store jewelry when on the go; a New York fashion designer who wants to transform the way clothes are manufactured in America.

A kit for teaching how to create cuddly animal characters; a trussing device designed to cook the perfect bird; a company that provides convenient personal storage for medical necessities; an update on Beatbox Beverages.

A protein bar with a brain-health mission; a coffee substitute that does not cause jitters; organic plant-care products; an easier way to floss; guest Shark Candace Nelson.

Guest shark Kevin Hart; a fun tool that takes snacking to the next level; a product made from space-age materials; an online social network that allows fans to have a real connection with their favorite celebrities and influencers.

Guest shark Gwyneth Paltrow; an alternative to cremation services; a stylish travel accessory; organic cooking spices; a convenient service for nursing mothers; an update on Yellow Leaf Hammocks.

"Shark Tank" rings in the holiday season as the sharks look to spread festive cheer to four new entrepreneurs.

First into the Tank are entrepreneurs from Seattle, Washington, who introduce their spa design that relies on innovative, alternative therapy to relieve common aches and pains. An entrepreneur from Oakland, California, is at the forefront of the future of food by creating sustainable protein in a lab. When a family from Shelton, Connecticut, present their kid’s reward system, the kids take over the pitch; and last into the Tank is an entrepreneur from San Diego, California, who pitches his simple but ingenious device which helps you capture frame-worthy pictures with your best friend.

A mother spends a huge amount of money on her healthier beverage alternative for kids; the next Airbnb; a way to maintain calm on car rides with kids; a portable way to maintain authentic flavor when cooking Italian dishes; an update on Everlywell.

A 13-year-old entrepreneur from Bentonville, Arkansas, introduces the Sharks to her stylish and innovative line of socks that help hold important items close all while giving back. A couple from Miami, Florida, present their all-natural and ethical beauty product line, while a husband and wife duo from Cleveland, Ohio, hope the Sharks will invest in their sexy technological device which will help couples turn missed opportunities into more romance. Finally, an entrepreneur from New York City pitches her vegan alternative to nut butters with her sweet and healthy line of spreads.

Entrepreneurs from Thousand Oaks, California, are reinventing the toothpaste game with their sustainable teeth-cleaning products, while a mother and son duo from San Francisco, California, introduce their convenient and affordable solution to helping families pack light and travel easier with baby gear. An entrepreneur from Los Angeles, California, enters the tank and presents a healthier version of a decadent treat. Finally, a pair of classmates from New York City pitch their customizable eyewear product line for kids.

Sprinkles Cupcakes founder Candace Nelson returns as a guest shark; a modern tinned seafood company; a diaper-changing helper; a brake for skateboards; lightweight packable meals.

A portable three-in-one charger; a DIY electric vehicle kit; a take-home sweet potato pie; indoor bumper cars for kids.

A cure for cellphone addiction; a toy that educates children; accessories for pets; smart tool box; Lori Greiner takes 10 of her entrepreneurs to the Orgill trade show.

Two high school freshmen pitch a tasty way to improve the ice cream cone; an entrepreneur presents a reinvented kid stroller with an athletic twist; a woman hopes to make the lives of parents easier with her line of child products; and a magician duo performs a music-magic entertainment spectacle, but will the Sharks see through the illusion? Also, an update on Gameday Couture, the fashionable women's gameday apparel, which Mark Cuban invested in during Season 6.

An innovative company that is rapidly redefining the art of gifting with the birth of their online platform makes its way into the "Tank" via a trio of entrepreneurs from Orange County, California; two men from Milwaukee, Wisconsin, introduce their coast guard-approved life jacket they feel is easier to use and will save lives; an entrepreneur from Atlanta, Georgia, pitches her online clothing company of products designed and manufactured in Africa; a mom-turned-entrepreneur from Montclair, New Jersey, manages to help create easier lives for parents with her all-in-one, self-protective silicone pacifier.

Improvement to a household gardening tool; a food product line featuring a low-carb nut; a safe shaving design; immune support packs designed to reduce unnecessary antibiotic use.

An entrepreneur wants to get into the cheese business; an energy product to keep people awake and alert on the go; a play-driven environment for kids; a garden product designed to keep homes free of pests; Daniel Lubetzky guest judges.