Mines: The Issue
Oddly shaped wheels from budget vehicles can often be too flat, small or poorly detailed for your badass custom death machines. If you’ve got some suitable replacement wheels then the salvaged ones can be effectively repurposed as mines!
The resulting mines make perfect in game counters to represent your devious passive weapon drops. If the scale is an issue for you then you can use the regular sized wheels for your trucks and heavy vehicles and the smaller ones for car, bikes etc.