1: get a copper/pvc pipe
2: Drill 2mm holes about 1 inch apart from each other, not fully going through.
3: get gunpowder, sugar and fertilizer.
4: Get non-insulated copper wire and a strong battery
5: Mix 1 part gunpowder, 2 parts fertilizer and a lil bit of sugar
6: Make wire sized holes to attach the battery w/ the wire
7: your all finished ^^