@AZGarden I used Rustoleum Metallic Spray Paint Primer and Paint in One. It is good for plastic as well as host of other materials. I have used Krylon for Plastic but it doesn't hold up. It is on a plastic chair and is slowly chipping away. I have pots painted with the Rustoleum before and they hold the color well. Of course, any deep scratch on it would take away the paint so I am careful with it. Otherwise is works great and you can get on on some good deals on some pots and customize them.
