Self-refrigerating (basically a giant bullet proof steal cooler), non-electric, coin operated bottle vending machine. I actually designed this entire thing using Google Sketchup and had it cut and fabricated at a steel project shop down the block. I could write pages about this, so post some questions and I'll be happy to write more.
There may be bigger ones, but that big "CINCINNATI" metal die press monster in the back ground impressed the hell out of me.
