For those who don't like guns, here's the link for a marshmallow-shooting bow:
http://www.amazon.com/Marshmallow-Fun-Co-Bow-Mallow/dp/B000W9KAQI
The ad for this weapon contains a warning of a choking hazard: "This toy is a small ball. Not for children under 3 yrs."
Small ball? It shoots fucking marshmallows!