The first person says what they put in the vending machine, and the second person says what comes out and puts another thing in the vending machine.
Example:
1st person: I put a cookie in the vending machine.
2nd person:Out comes CX eating a cookie.
I put a flower in the vending machine.
3rd person: Out comes mario in a red and white outfit.
I put a smily in the vending machine.
4th person: Out comes a bounceball.
I put the bounceball in th vending machine.
And so on.
General ASDF Forum rules apply.
I'l start:
I put some Ice cream in the vending machine.