We'd buy some used bowling balls at DI for like a buck each. Lots of fun to be had

Get going about 100 MPH on country roads in Idaho and throw the ball out the back window of my friend's pathfinder and see what would happen.

Drop the bowling ball of a 400 foot high bridge over the snake river. We actually got extra credit for this in physics class because we videotaped it and calculated how high the bridge was by counting how long it took the ball to hit the water and using whatever formula you use for the rate of gravity accounting for terminal velocity.

You have to get creative to have fun in rural Idaho especially if you don't drink.