Cellphone leads to Popcorn?!?!

haha that kinda funny, but idk how vibrating cellphones can do that? is it just the vibrating, b/c if it is i can think of a few other things that would work too lol
 
my parents took my friend and me to dinner and she was talking about this but my dad said over and over it's not possible. they got in a heated discussion ^__^ pretty cool idea though