The Key Klamp base idea was coming in at ~$200, per controller! I went home for Jesus's Birthday and threw the idea at my dad and he suggested using a walker. Holy Shit.
- crazy lightweight
- folds (!)
- adjustable height
- easy to aquire (~$10 on craigslist or at Unique)
I made an instructable called Stand Up Arcade Controllers using Adult Walkers which tells in detail how I put this together.