Holy crap these guys rule!!! This is soooooooooooooo cool!!!!!!!!!!!!!!!!!!!!!!! Me and my friend did something like this for our school science fair and we had everycome outside unfortunaly it was a one time deal apaarently we tried it once and it worked, but we didn't have enough soda to do it again and still have enough so it ended up spurting over everyone and we got denetetion for a month. It was hilarious at the time though! We got our meanest teacher in the face!: )