Making a second set of these plywood penholders. For the first set I made the pattern in SketchUp, printed it out several times and glued it on to each piece of plywood with 3M Spray Mount repositionable adhesive. Repositionable, it turns out, only in the short term. After a couple of days, getting the pattern off the wood is a case of laborious scraping with a fingernail. So I’m still using the paper pattern but only on one piece of 6mm ply, to make a template. The template can be kept for any number of future similar pieces. Now all you do is draw round the template with a pencil and you’re ready for the fretsaw.