A line of dresses made of pillowcases; a unique spatula; vitamin oral sprays; energy-boosting waffles.

Safe and natural cleaning products; a party cup with a hidden shot glass; a lightweight, electric bodyboard; a root cover for recently planted trees.

Popular knee-high boot socks sold online; a stylish clutch for essential items; a way for kids to create and personalize lunchbox designs; customized chocolate bars; artisan cheese and glazed donut sandwiches.

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.

Stuffed animals that also serve as washcloths; a handmade wearable sling to carry dogs; a darts-like card game.

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 $2 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 present ideas that include nonslip protective gloves for cross-fitness training, an elite canine training program and a bottle opener made of recycled.50 caliber shells.

A dating app that introduces singles to friends of friends; a new way to eat a bagel.

A vest with a twist that was inspired by a girl's science project; baking healthy, homemade cookies; a cleaning solution for water bottles; re-usable fabric stickers.

An elegant lighting solution; wearable sleep technology; a food bar for dogs; actor Dean Cain and MMA fighter Uriah Faber help pitch custom-tailored suits.

Almond water beverage line; eco-friendly pizza box; real estate investing business; cell phone sanitization solution; update on photo-saving product, Groovebook.

A device to eliminate clogged sinks, real grass delivery service for pets, and a climate-controlled bed.

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; sweet-flavored wipes for cleaning kids' faces.

Pat Boone and a man from Vermont present a new eco-friendly car that runs on compressed air.

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.

Nick Woodman; a cafe where the patrons enjoy the company of rescue cats; electric compact vehicle.

Guest shark Ashton Kutcher shows interest in a device to make baby's feeding time easier; two men skate into the Tank with some high-tech wearable transportation; a culinary student wants to bring drinking vinegars into the 21st century; and a computer crimes expert protects consumers from crowd-hack-attacks on credit cards. Also: an update on two of Barbara Corcoran's Season 6 deals: Pipcorn, the organic mini-popcorn snack, and Scratch & Grain, a healthier way to bake homemade cookies from scratch.

A recent college graduate has a twist on the traditional hummus; a passionate aesthetician pitches her eyelash extensions business; two friends believe their edible cups are a delicious alternative to a disposable version; and two brothers donned tuxedos pitching their solution to the forgotten computer password. Also, an update on The Red Dress Boutique, in which Mark Cuban invested during Season 6.

Guest shark Troy Carter; a sock-of-the-month club; wooden bow ties, lapel accessories and fedoras; a valet and garage parking app; a balm that stops eyeglasses from slipping; an update on some of Kevin O'Leary's previous deals.

Silicon Valley venture capitalist, Chris Sacca, joins the Tank as a Guest Shark. He finds himself in a heated battle with Lori over a tech education business; two sports fans have a home rental website; an entrepreneur with a unique twist on everyone's favorite hot drink; and an inventor has developed a device that can inflate objects in mere seconds. Also, an update on SWAG Essentials, which did not get a deal in the Tank during season 6.

A Christmas-decorating aficionado has a high-tech way to deck the halls with animated glow balls and synchronized musical trees; an entrepreneur has whimsical knit hats, complete with detachable facemask; two Harvard grads have a line of ornate, pop-up greeting cards for all occasions; and two women demonstrate their all-natural deodorant made from activated charcoal. Plus, Daymond John gives a workshop to the principals of four of his companies - Bombas Socks, Sunstaches, Myself Belts, and Cozy Bugs - and brings out chef Rocco DiSpirito to provide some delicious inspiration.