Just getting started on new display trays for pens. I'm making 12, enough for 144 pens. I've made similar ones, but I made them too wide and not enough space between pens. They should fit three deep on a standard craft show table. These inserts were made from 1 1/4 pine with a cove routed on each side and then sliced off. I decided on a final length of 6 inches. Twelve are glued together on a backer board and then flocked a charcoal gray. Next step is to make all the boxes for them to fit into, probably 1 1/2 deep so the pens won't slide off easily. Thinking I'll make those out of maple.