I used WalMart chopping board, a 3.5 gallon bucket (?), 4 oz fuel tank, 3x4 Rail Road tie, 1/2 in threaded rod and brass wing nut/washer. I epoxied the rod into the wood.

You can also turn the board around for another size engine!

There are also 2 layers of styrofoam packing peanuts to take up volume and same weight. I never know what to do with them things...