the most fun i ever had with shaving foams was tacking the cap off, sticking a needle in the cap opening and melting the tip, pulling out the needle, cap back on, press button and shave cream evacuation measured in feet not mm's.
here is a crappy you tube video someone made trying to sell something this..
[video]http://youtu.be/G455thab3m0[/video]
I think its a great idea. May I say I enjoy using this brand, feels great on the skin.