Instructions to create your own paper castle and catapult catapult design by a 7th grade student by Rachel Wintemberg. 12 Popsicle sticks, a rubber band, a plastic spoon and some hot glue. Assignment: design a catapult capable of lobbing mini marshmallows into your neighbor's castle. Mini marshmallows are ideal for a mock medieval siege because they are 100% safe of they hit you.
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