I found this beautiful light cover at my local thrift store for only $2.00 but I didn't know what to do with it - until I thought upside down it would make a great birdbath!
It had a hole in the center where it would attach to the light so I just filled it with silicone. I set it on top of an old base I had which matched in color. I wish I took more pictures but here's the finished product. :)