BonesOfTheMoonAnd get two birds stoned at once.
You can also deflate the tires by stabbing them with multiple steel nails.
This is unsafe, because it might lead to a catastrophic tire failure. A small pebble under the valve stem cap is much safer and equally effective.
This can be noticed and easily fixed, but a few ping pong balls in the gas tank won’t do permanent damage but will fuck up someone’s day.
Or you could nick and sell them to buy weed and booze