I have a long history of biting off more than I can chew when it comes to Halloween costumes. It's in that tradition that, when my friends suggested Star Wars as a theme for costumes this year, my first idea was to go as an AT-ST, the 2-man chicken-walker
mech that the Ewoks beat up on in Return of the Jedi. After several design iterations I had left the Star Wars Universe behind in favor of a steampunk flavor, and thus was born the Steam Walker.
The idea is to make it looks like I'm sitting in a chair riding atop a steam-powered mech that walks on two robotic legs. In reality my seated legs are false, and my real legs power the robot's legs. This is basically a variant on the age-old circus-clown costume where someone looks like they're riding a horse, and is also inspired by Ben Hallert's APU costume
and the paintball mech costume called Steel Dawn
While not fast enough to keep up with 6-year-old trick-or-treaters as they went from house to house, I was still able to walk down the street and show off to passers by. The most common reaction was along the lines of "Wow! That's the coolest costume I've ever seen -- what the heck are you?!?
I also got little kids (and some older kids, who really should know better) asking me how the thing was powered, several adults admitting they couldn't figure out how the thing worked, and at least one little girl bursting into tears as she saw me ambling towards her. All in all, I'd say it was a big success :).