I recently came across this craft and I am going to try making it this weekend! If you happen to make your bird bath before I do, please send me pictures! I would love to see your finished product! Terra Cotta Flower Pot Bird Bath. Your best bet for decorating terra cotta that will be used outdoors is Patio Paints. I know they are a little pricey, but they are fade resistant, non-toxic and designed for outdoor use. Patio Paints also make a clear, non-toxic sealant that will protect your handiwork. Another option for protecting your work would be a water-based polyurethane. Read the instruction label and look for soap and water clean-up, and a product that is meant for use over painted surfaces. I don't recommend oil-based polyurethane for painted surfaces. It is yellowish in color and over time it will cause your work to have a yellow tinted appearance. Whatever you choose, remember it won't be permanent. Your bird bath will likely require refinishing and touching up every oth