This video shows how to make a simple coil gun from an electric stapler and about $3 worth of PVC pipe.  This would be a great science fair project to show the power of electromagnetics.
good idea to source the coil

About This Instructable



More by HowToLou:How to Build a Kitchen Fireplace Odorless Toilet for $35 Homemade Leaf Vacuum for $50 
Add instructable to: