I showed at the maker Faire in Detroit in 2010 and 2013. You will fit in real good. It's an interesting show. People build, modify, and hack some of the coolest stuff. Here are a few of the cool things I saw.
20 foot tall fire breathing dragon.
Life size mouse trap game. Instead of the cage coming down at the end and trapping the mouse, A safe drops
and crushes a car.
Metal bashers
Monster bicycle that shoots flames 20 foot in the air.
These were not models. They were the original salesmans samples of some steam engines.