Episode 823

S8 E21: Two Chicago entrepreneurs bring a live guard llama into the Tank to demonstrate their product. Also: a safer take on the bicycle; an app that helps shoppers and diners earn free parking in exchange for their business; and a free photo-printing service. Also, a follow-up with former professional football player Al "Bubba" Baker from Avon, Ohio, and his de-boned rib steaks known as Bubba's Boneless Ribs, which Daymond John invested in during Season 5.