You hear lots of strange noises from the vending machine, accompanied by rumbles as if it was a very small earthquake going on. After 15 seconds it stops - as if it's decided something - and then the top of an oak slowly shoots out of the vending machine, growing and growing and growing, until it hits the roof and falls out of the vending machine, does a salto and lands and plants its roots in one move. You get a full-grown oak standing a few meters away from the vending machine.
I put in myself