University of Delaware graduate Joelle Flynn peddled her lipstick-size toothbrush on ABC’s “Shark Tank,” cutting a $250,000 deal with one of the sharks. FunkkOFF! TeethRefreshers was created in 2010 as a way for people to discreetly brush their teeth when they’re on the move – especially when they’re drinking red wine. It hit the consumer market in 2019. Flynn had …