Guest shark Ashton Kutcher shows interest in a device to make baby’s feeding time easier; two men skate into the Tank with some high-tech wearable transportation; a culinary student wants to bring drinking vinegars into the 21st century; and a computer crimes expert protects consumers from crowd-hack-attacks on credit cards. Also: an update on two of Barbara Corcoran’s Season 6 deals: Pipcorn, the organic mini-popcorn snack, and Scratch & Grain, a healthier way to bake homemade cookies from scratch.