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.

A beauty product that combines luxury and glamour with safety and quality; a product for cutting cheese; a space-saving beauty organizer; a way to remove pet hair from clothes; an update on FitFighter.

An entrepreneur from San Francisco, California, tries to show the Sharks the upside of investing in her women’s undergarment subscription service. A chef from Falls Church, Virginia, brings out his effortless approach to a classic breakfast meal. An entrepreneur from New York City shows the Sharks her eco-friendly alternative to collecting dog waste. A scientist and former competitive body builder from West Orange, New Jersey, pitches his healthy take on a beloved snack food.

Jax Sheets; reusable, eco-friendly, more comfortable bed sheets that will last you and your spouse year-round (NO), The Pizza Cupcake; pizza flavored bagels shaped like cupcakes (YES), IceBeanie; cooler technology in a beanie to relieve chronic stress headaches, especially after high energy sports games (YES), Draft Top; can opener to remove can tops from draft beer, as well as any other canned beverages (YES)

Ideas include a training system for salespeople, a management system for cargo trucks, family-friendly Las Vegas entertainment and a cat-portrait business. Also: a follow-up on a Season 2 potty-training product for cats.

A shark wants to invest $4 million in a business; a toy-rental business; a bacon-scented wake-up call; an update on a deal from last season.

Will Sharks Barbara and Kevin seal a deal with a kiss when two guys from Utah ask them to sample their flavored mix-and-match lip balm kissing product? A self-professed gadget guy from Ketchum, ID calls a Shark’s lucrative offer “insane” regarding his revolutionary clothing item; during their heated negotiation, the entrepreneur calls Apple Computers co-founder Steve Wozniak for advice. A newlywed from Rockledge, FL who lost her job the day before coming to the Tank hopes the Sharks will invest in her and her husband’s line of innovative, clever kitchen products; and a husband from Derby, KS pitches the Sharks a heat-recycling device which his wife calls “common sense in a box.” Also, a follow-up on Greenville, SC’s Kim Nelson’s homemade Daisy Cakes, which Barbara invested in during Season 2.

An edible flower company; a way to be active yet protected while under the sun; a clean makeup brand; a modern dental tool used for oral care; an update on Foam Party Hats.

The Tank is transformed into a winter wonderland, and entrepreneurs present Sharks with business opportunities that celebrate the magic of the holiday season.

An 11-year-old inventor from San Clemente, California, recycles a skateboard deck to fit inside lockers and backpacks; an entrepreneur from Meridianville, Alabama, revolutionizes aerial sports; a husband and wife team from Vicksburg, Mississippi create outdoor camping gear; and an entrepreneur from San Francisco, California, claims her five-minute meditation app will help the world reduce stress.

Tensions rise when Mark Cuban urges entrepreneurs to ignore the other sharks and negotiate only with him.

A solution to remembering passed loved ones by turning their ashes into diamonds. Redesigned men's classic fashion staple. Innovation to wireless charging.

Knife sharpening by mail; a device that offers relief from bug bites; a bathroom product to help block odours; a vegan alternative to pork rinds.

A portable product designed to bring all the convenience of a kitchen to the outdoors; a mobile solution to help with gadget repair; a sports design that transforms sneakers into golf shoes; a product that helps relieve body pain.

Kids' shoes designed to be fashionable and save money; a fashion line for people who want to match their best friends; an interesting kitchen tool; a family introduces their "freak shakes."

A cutting-edge stem cell technology to save pets from diseases; a healthier alternative to a traditional style deli meat; a multifunctional exercise device; an innovation in outdoor furniture.

A couple pitches their design that adds resistance to workout. Then, entrepreneurs attempt to get the Sharks to bite on their product.

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.

An Italian cuisine business; a fashion line that provides a functional solution to a common problem for babies; a humane pest control solution; a former beauty queen turns one of the biggest issues in farming into a business opportunity.

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.

A father and his 15-year-old son from Cincinnati, Ohio, share their solution for storing paint efficiently. Two tech-savvy entrepreneurs from Somerville, Massachusetts, show off their portable electric vehicle charger. A husband and wife from Milltown, New Jersey, pitch their product designed to keep garments safe from bacteria and odor. An entrepreneur from Portland, Oregon, tries to convince the Sharks he’s brought blankets into the 21st century.

A healthy alternative to salt; a spring-loaded cake stand; an entertaining approach to the tried-and-true carving knives often used during holidays; a product designed to attach a cellphone to almost any surface.

An Iraq war veteran from Baltimore, Maryland, pitches her unique fitness system. A husband and wife from Ossining, New York, share their high-tech headband designed to provide the brain with a boost of energy. A mother-and-son duo from Houston, Texas, introduce their festive party hats. An entrepreneur from Sonoma, California, pitches his wine made from honey.

CloseCousins from Houston, Texas, prove it’s go big or go home with their line of giant, inflatable holiday ornaments. A husband and wife from Normal, Illinois, have come up with a solution for his lingering in the bathroom. An entrepreneur from Salt Lake City, Utah, shares his unique way to shred on the slopes, while an entrepreneur from Windham, New Hampshire, alerts the Sharks to a safety hazard for kids in the winter.

A former WNBA player knows what athletes want in a sports drink; an entrepreneur enlists the help of a superstar to show off his work from home necessity; a couple's secret to "sexy time."