There is a rather inexpensive spray gun called "the Criter" runs about $50 that will work on any type of paint , varnish, lacquer. It does not allow you to change the pattern of the spray but that will probably not be an issue. If you get the critter make certain it is with the stainless tube not the aluminum the latter will bend when dropped. It uses a pint size "Mason" jar. I use lacquer and keep one filled with lacquer the other with Acetone to clean the spray head when done. Darryl