Simple Rocket41

Simple Rocket was built as a competition piece for a middle school penny hauling competition. The each item used to build the rocket could be purchased from a store with game money. The winner built the rocket that hauled the most pennies the highest for the least cost.

http://www.nathanaelmiller.com/simple-rocket41

Depending on your printer you will need different size payload adapters. STL files are provided for 0.005, 0.006 and 0.007 inch clearance fits. If it is two tight, your rocket won't separate.