Not sure if this idea is creative enough but I saw a bird bath made out of clay pots and saucer. Basically, you start with 3 different size pots, large, medium and small, turn them upside down and stack them and finish with a large sized saucer for the bird bath. The creative part was how the people decorated the clay pots. Painted, glued shells, stones etc on the pots. I think though they need to be sealed so they hold the water longer. I think if you do a google search on making your own bird bath, you may find this and probably others. Good luck.