Similar antic when we were kids around bonfire night time, we would block one end of our bike handle with a lump of wood, then slide several bangers down the other end, with any projectile we could find to fit the other end, a small pebble etc, light the last banger into the tube and the pebble, now stand back !!!, how we managed to grow up i sometimes wonder. We even tried fishing with bangers, ball of mud round the banger, light the fuse and drop it in the river, i don't recall getting any fish, kt