What's hiding in your closet!?

Yesterday I was straightening up the boys bedrooms. The kind of cleaning where you just look for odds and ends that somehow get placed in the wrong place. I usually find stashed away candy wrappers, dirty socks hidden under the beds, a pizza crust (?) and worn out paper airplanes. But yesterday, to my surprise, I found in their closet, a plastic sand bucket -- full of water -- with a cup floating on top. I'm still not sure why they would need a bucket full of water -- but it was there, and I still smile every time I think about it!