I have found rattle snakes that where killed by cars when they came up to the warm road in the evenings on the Paynes Prarie road near Gainesville FLA. I found out that the Skin Shop paid a buck an inch and actually brought one back and got $46. It wasn't too bloated to make into a wallet.
I have also found a swiss army knife, a few wrenches, and one was a snap-on!