This is a really bad idea. First it will be just for the home. But what if it goes even further. What if it were to be used at Hooters or something. Think about what it would replace... Now do we really want that to happen. I say no... Def.. not the kinda cans I want to look at.
Funny. Some engineering nerds made a robot just like this while I was in college, right down to the mini Heiny keg. At the time I jokingly told them to file a patent.