Part Time Chef made a working replica cannon that shoots harmless powder filled cannon balls – “Halloween has been a pirate theme around here for a while. I had the sword, I had the treasure chest, I needed a cannon. More than just a prop, this cannon will fire a potato slug a couple of hundred yards. For Halloween we dialed back the psi and shot harmless “cannonballs” made from tissue paper filled with baby powder. The result was a VERY popular addition to the pirate party we had.”Link.

  • DGary

    I’m thinking big block of foam on a lathe for this one…

    actually, has anyone ever tried turning rigid foam on a lathe?

    I’m sure heavy grit sandpaper would still work the same, but I’m thinking a cutting device different than most lathe tools might need to be conceived.