1 shot paint really is the way to go. I use it on everything from leather to wood and glass. It's opaque and flexible so it won't crack if you use it to paint purses. It's sign painter's paint so it's also good for stuff that will be outdoors, and it's used to pinstripe cars so it's SUPER permanent. If you can't find it in your local art supply store check out Kingpin Tattoo supply.