I just picked up an interesting tool, it's an exhaust manifold spreader. I don't need my exhaust manifolds spread, but it looks like one of those little things that could come in quite handy for tight spaces, especially tightening belts and such.
For less than $4 it's hard to go wrong
There are higher quality ones out there, but it's not something I'll use often.
here's a more expensive one, same design, better quality: https://www.amazon.com/gp/product/B004KEHEJ2