I can no longer restrain myself from posting this. I need to make sure you saw it. I was sent the link from Gizmodo. The canon launches the cupcakes at 120 psi. That seems to be a pretty safe and fun speed. I surely would have signed up to be in this video.
Seems it has to do with something called Johnny Cupcakes, which, disappointingly, has more to do with T-shirts than it does with baked goods.