when i was a kid there was one called a M-80. that bad boy was somethin to see. it would blow the top off a trash can into the air like 10 feet. it would also take a mailbox off the front of a unliked neighobrs house..leaves nothing but a burn mark where the mailbox used to be. lol. it had a water proof fuse. you could tie it to a rock, light the fuse, throw it into a river or lake and it looked like a depth charge went off. lol. played hell with the fish too.