I have to credit my friend Dan for this one, he showed me that you can use a ceiling tile for sticking pins in, he has a nice smooth work bench so he just lays the tile on that. I mount mine to base boards so they are more portable, the large one I have I set up on saw horses when I use it, and can be stuck up against the wall when not in use.
Step 1: Materials
I am making a board that is 2' by 2' but you can make the board any size you like by simply increasing the size of the materials.
-Plywood, since I am building a board that is 2 feet square I picked up a precut piece of plywood that is 24" by 24". Make sure you board is flat. You can make any size board you like just increase materials accordingly.
-Ceiling tile, just get a cheap basic ceiling tile with square edges, not the ones with the beveled edges. The tiles come in 2' by 4' pieces so for my board I well only use half of a tile.
-Double sided tape, the thin kind not the thicker foam style it can make lumps on the board.
-Cutting implement for cutting the tile.
NOTE: If you build a board larger then 2' by 4' I recommend that you make a frame for under the base board to reinforce it so that it stays flat, on my 6 foot long board I used some pieces of 2" x 1/2" pine and went all around the edges and had two stringers going down the length of the underside of the board. Also make sure the grain of the plywood goes length wise, not really important on mine as the length = the width.
Step 2: Apply tape
Step 3: Add the ceiling tile
-Trim the extra ceiling tile off with a sharp knife.
-Done! Simple as that. When the ceiling tile gets chewed up from being poked with pins and gouged with a hobby knife when trimming parts, just peel off the old tile and stick on a new one, in my case the other half.