Hahn, an Australian brewery, is obviously in the wrong business. Instead of focusing on crafting fine ales, it should be further developing and commercialising this stabilising arm that guarantees you won't spill a drop when being jostled about in a bar.
That is, if the arm was actually more than just a clever visual effect appearing in a Hahn commercial. But the same technology exists for video cameras, so there's no reason why it couldn't be adapted for a night of partying. [YouTube via The Awesomer via Reddit]