Firecrackers and water???
dont tell me you guys never lit firecrackers and tossed them into the water? better yet are bottlerockets...or something bigger! just make sure it's not YOUR pond!
My neighbor behind me used to shoot them my way and I'd find them in my ponds. A couple of times they landed on my roof. Fortunately his kids are all grown up except one now, and he apparently isn't inclined to do it anymore.
