The Pump Action Marshmallow Blaster.

"Only available from Hammacher Schlemmer, this pump-action, pneumatic gun shoots sweet, edible marshmallows (or a handful of miniature marshmallows) up to 40' (Play Video). The easy-to-refill, bolt-action design ensures fast, nonstop action. Front grip is detachable for easy cleanup. Ages 6 and up. Not available in New York City or New York State. 6"" H x 2 1/2"" W x 17"" L. (2 lbs.)"

The The Pump Action Marshmallow Blaster. is provided by and can be purchased online at Hammacher Schlemmer.