or the giant motor driven metal snails with flaming antennas
or the giant custom tricycles
or this poor SOB that volunteered to be in the metal box in-between the Tesla coils. The bolts were tied to the live music. It was pretty impressive and cool to see electricity in some type of physical form.
and this just seemed like it would be fun to screw around on. It's a hydraulic powered giant mechanical spider. I can imagine doing some all terrain stuff or urban exploration / parking scofflaw vigilante.