You can also cut your own stencil from mylar drafting material or other thin plastic and apply paint through the stencil using a stencil brush or sponge. The trick is to keep the stencil from shifting to keep the edge clean whilst you apply the paint. I used Hyside paint made for hypalon. Check Utube for stenciling tips, and practice on another surface before you do it for keeps. We used the copier to enlarge a favorite petroglyph, cut the stencil and applied them to the trusty Avon. Let the stencil dry, reverse, and apply the opposite hand version to the other side of the craft. We've had these stencils on our raft for 10 years or so.