I think the "coolest" thing in there (like wow factor) is the Percival controlled room. That's some real sci-fi stuff.
The Winnebago looks cool, and would love to have one, but its really just a Winny mod kit on a Mercedes Sprinter; is it really "made" in Iowa? Kinda...
The Sukup Safe-T-Home is a really neat idea too; anyone know how good it is in practice?
The Bin Buster beer can, with the fake corrugated steel label - kinda dumb but I love it.
Surprised nothing from Collins - they have some high end military GPS stuff that's pretty wild. Probably not actually made in Iowa anymore though, they've outsourced about everything.