A group of kids in Denver recently recreated a miniature version one of Genghis Khan's most famous weapons.
However, the homemade mini catapults were less threatening than the original weapon as they launched some unusual ammunition - marshmallows.
The Saturday event was hosted by the Denver Museum of Nature and Science as part of the Genghis Khan exhibit.
Organizers said they wanted to give future engineers a chance to enhance their thinking and design skills.
The exhibit is expected to continue through the early part of February.