A few people have ask me for the plans of pen stand I made the other day I used 1/2" corian but there are plenty of other suitable materials I drilled 10mm holes before I cut it out for the pen slots in the top but this can be adjusted for any pen size also seeing as some may not be happy with but joints I use 5mm brass dowling drilled the top and bottom out before cutting the drilled to the required depth into the back plate after assembly I hope this is of help to some of you