Flower Pot Chimes

 

You can paint a flower pot and hang something inside it for it to make noise when you hang it up outside.

You could also paint like 3 flower pots (1 big one, 1 medium one, and 1 small one) and hang them with knots down the rope going through them.  I think they sound like a cow bell :)
They are cute for kids to paint and hang in a tree in the yard.