22 inches of 1/2 PVC pipe (1/2 is a the nominal diameter, its actual outer diameter is closer to 7/8 inch), 2 end caps, 2 three way junctions, and 2 elbows.) Tape for design.
Tools: We used a clamp, a handsaw, and scissors.
Difficulties: The most challenging part of our project was finding out how to shoot it well. We solved the problem by experimenting different solutions.
We learned learned how pressure is go to know about when it comes to guns. It was very fun to shoot the guns.