Do you remember that jaw dropping video that showed beer being poured through the bottom of the glass? It all works because of this simple magnet attached to the bottom of the cup. The magnet raises up, to open, when being filled with the BottomsUP tap and keeps closed when you're drinking the brewski. Smart.


The only problem is if something moves the magnet, like this. Otherwise, still an ingenious solution. [@nickmonroe via @darrenrovell]