We got the spray paint at the local art supply store. I was skeptical that spray paint would work. I've never had much luck using the stuff. it never seems to cover well and always runs and drips for me. Maybe I'm too impatient. I must report this paint was fantastic. Montana Gold professional spray paint is amazing stuff. It is about twice as expensive as normal crap spray but well worth it.
The color selection is amazing. It is worth buying a can just to see what you have been missing.