Shark Tank

The sharks examine a subscription service for puppy products, apparel designed for athletic builds, and a fishing line cutting tool; a woman hopes to popularise algae as a nutritional supplement.

The Sharks surprise a team pitching electric skateboards; an MIT graduate presents dog food that's practically fit for humans.

An entrepreneur works with Santa Claus to reply to children's letters to the North Pole; an 83-year-old Ironman triathlon competitor and his business partner present a more functional winter glove.

A new line of dolls aiming to boost children's self-esteem and a product that exercises a pet cat's mind and body is pitched before the sharks.

A single mum introduces an environmentally friendly way to dispose of grease; a 21-year-old presents his impressive line of toy blocks; a mother brings in her line of breastfeeding apparel.

Entrepreneurs rent tiny houses in the woods. Further, sharks are presented with a snack chip made with cricket flour. They next hear about earplugs that filter out damaging levels of noise at concerts.