I found a use for them! I have to weatherproof my freestanding outside water faucet every winter ( I know you can buy freeze proof ones, but -oh,well). I stacked the 4 tires over the pipe and it was a perfect fit. I topped it with a plastic wrapped bottom from our old BBQ grill. It's behind the house, so the inspector can't see. When spring comes, I can pull it apart in minutes and stash them back in the shed away from the rain and mosquitoes.