For SteamCon II I added an anti-gravity pack to my costume.
Here is the original design I made about a year ago.
3D prototyping.
Working on the side tanks. PVC pipe, foam shaved down to domes for the ends, then covered with Bondo and sanded to a smooth finish.
Early assemblage of the parts. Googly eyes used for the rivets. MDF used for the engine/heat sink-looking part.
First coat of primer.
Plasma disk used to add some spiffy electrical flare.
Harness with breathing apparatus.
Shot taken at SteamCon II by Photo Knight.