What's the coolest/most interesting thing you've found in your truck

[Montierth]

I found several pesos under the rubber flooring and in the vents inside the cab.

Also inside the driver side vent I found a glass weed pipe that looked well used. Should have kept but wife encouraged me to toss it so I did.

I also found a small Batman action figure that when you squeeze his legs together he punches. When I bought my truck it was all black and I originally called it the black pearl because it sat in the "bay" all the time and was pretty rough. Once I found the batman it went on the dash and became the batmobile.