Only just getting into it, but going with "Sketchy Brewing" currently. Plenty of good opportunities for good taglines. "Sketchy at the best of times."......"Sketch-tactularly / tastically hand crafted in my basement."......"Legal? Perhaps. Delicious? Certainly. Sketchy? Of course.".......
What would work even better than masking tape or wax is a liquid mask designed for painting models/rc shells. "Bob Daveli's" works awesome. Paint it on in 3 or so medium thick layers, drying in between. Then trace your design with a hobby knife and peel off. Easy to get more intricate...