Clay rocks

Using an idea of a friend of mine, I've made a few clay balls in my pottery class. Well, one is more rock shape than ball shape, on purpose. I put rocks in the balls to make it rattle, but my rocks fell out. (Is this akin to losing your marbles??) Anyway, I plan on leaving these two in local parks where they may not be found until next spring...unless someone enjoys fall hikes as much as I do. I'll attach (somehow) a laminated tag with the Found Art sticker. I sure hope someone lets me know when they find these. I particularly would like to hear from the person who finds the one that looks more like a rock. I have a feeling it will go overlooked for a long time, so it'll be interesting to hear how someone noticed it...what made them pick it up. Maybe it will be the tag that they think is litter that will get them to pick it up. We'll see! I'll report back again when I finally leave these pieces.