i can get almost any size of pvc, mi sisters boyfriend and one of mi friends work for a local company that deals with pluming, they also do water heaters (thats were i got the sparker)

i have a budget of 100$ to 150$

i have built a cannon already. i was very inprest with what i was able to do. i now have a electronic sparker so i want to build something rely impressive. anyone have any ideas or plans???