An old kitchen sink?
Well, this old sink solves three problems.
1. The metal pipes you see are holding up the roof of the garden cage. It's sagging because I didn't get to glue the pieces of the PVC pipe together. Having been guaranteed by someone who knows all that they would NOT come apart. The wind blew them apart, and now with the wire attached, and up in the air, they can't be stuck together, only taped. So those rods are holding it up. Had a problem with the wind pulling them around too, but now they're in the sink. Don't think the wind can slide the sink around.
2. The left sink is holding clay and water for my mason bees to make coccoons with. That side would not drain, I don't know why, it's an open sink drain. So, it will keep the clay moist. (If I had made a water garden like I wanted, it would have drained, even with a plug)
3. The right sink is holding some small tomato seedlings until they're big enough to plant in the garden.