There are several here posted by other Hometalk members. There are even a few that you could substitute what you have for the item the member is using. I hope these help you. Wishing you the best.
Here's a cute one: http://my-creativit.blogspot.com/2012/06/diy-terracotta-birdbath.html
Place in a partly shaded area, either on the ground, or on a pedestal...fill with water, change DAILY to keep clean.
You can check out these ideas: https://blog.gardenloversclub.com/diy/flower-pot-bird-baths/