Couplle of months ago I was trying to make a cannon that shot fire works and it didn't work. Last night found a vid by cubfan135 gave tme the tip I needed, thanks buddy! Any way Ialso needed a bridge a day or so of editing later...I am fairly proud of this bridge. Its east west facing and things like dispenser guns paints and such will break if turned. The Piston bridge will still work. Designed to span an average minecraft river. Once opened up there's no way in...you might want to hang some vines. the Dragon heads shoot fireworks sideway upon closing the bridge. I packed some chests in the tower apartment with supplies for more fireworks.