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.

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

Maternity T-shirts, a toilet-training kit for cats, extravagant but affordable jewelry, and shoes with interchangeable tops are pitched in the second-season finale. Also: an update on Season 1's Voyage Air Guitar, whose inventors turned down a million-dollar offer from the sharks.

The Sharks are stunned by the exploits of two sisters with a children's dance company; a chef with tasty seafood products and more

Children seek a backer for an idea spawned during a family trip and the sharks fight for a piece of a mother's furniture business.

A former athlete believes his product can save lives; environmental lawn-mowers; solution to car sickness; kids birthday party franchise.

An entrepreneur from Chicago hopes the sharks can dig him out of a financial hole; a single mother believes her aromatic lip gloss can help women look and feel beautiful.

An entrepreneur presents a line of luxury maternity gowns; a woman tries to impress the sharks with her homemade cakes; the sharks fight over a stay-at-home dad's product.

Comic Jeff Foxworthy makes his debut as a guest Shark investor; actor Vincent Pastore pitches a business proposition; a flight attendant and her husband present their unique portable child's seat.