Garden Art Whimsy

For ages I have been wanting to create something whimsical for my garden. Pinterest has inspired me so much that today I finally decided to do something with my old light fitting and metal garden stake. I looked around in my craft room and found these gorgeous blue glass pebbles. I have now put it in my garden and was thinking it might be lovely as a birdbath.... just not too sure how the birds will perch on the rim. I'll fill it with water anyway......