A quicker, more immediate solution is to give your vinyl lettering some pizzazz, some color and texture. In Airbrushing Special Effects on Vinyl , I discussed one method for doing this very thing. I showed how to chrome-look vinyl lettering using an airbrush and some paint. It's appropriate for a variety of applications, and I've found it to be one of the most popular effects I use.
Customers love it and are willing to pay more for it.
Once the text was created, I output it to my Allen Datagraph 824 plotter. To stipple, you simply place the tip of your airbrush against a wooden clothespin. Then, spray the paint. The paint will pool up onto the clothespin, then fall as droplets to the vinyl. Notice that the farther back you place the airbrush, the larger the stipple pattern.