Shark Tank - Season 4 (2012)

An unemployed man and his pregnant wife pitch a party-favorite chicken dip.

A line of dresses made from pillowcases; a unique spatula; vitamin sprays.

Brandon Jacobs hopes to help a woman with her protein-infused energy drink.

A modern-day slip business; a scrubbing tool; dog-friendly frozen yogurt.

Seth MacFarlane shows his support for a man who designed a new fly trap.

Comedy writer Bruce Vilanch presents a computer instruction project.

An energy supplement designed by active members of the military.

A rent-a-live Christmas tree service; gluten-free fudge.

Mark and Lori offer an entrepreneur $1 million; tabletop food screen.

A capsule that keeps beverages hot for an extended period.

Sandals for barefoot runners.

A successful entrepreneur returns with a new business idea.

Kevin O'Leary makes a $1 million offer.

Unique eyewear made of sustainable wood.

Fortified, sugar-free nut butters; an acupressure wrist band.

A damage-proof cell phone case.

A device to stop objects from falling between car seats, a company promoting the consumption of lion fish, shrink wrap gift bags, and a skincare product.

Gourmet meat business; a cooler with interior LED lighting.

A fishing bobber made from a shotgun shell.

Frozen concentrated gumbo brick; a bird feeder that shocks squirrels.

Teaching kids how to ride a bike that doesn't have pedals.

Two women pitch their military-inspired jewelry line; traditional British scone; custom furniture; door-to-door luggage pickup service; update on the Scrub Daddy cleaning tool.

An app that provides international travelers with access to live translators.