Ok, so I decided to put together a magnetic display for my Adon. I /think/ that it will look really cool, so I'm going to document the process here in case anyone else decides to go this route.
So for step one, I have a 20" x 30" White Frame Magnetic Dry Erase Board ($18, Target). Since the only parts of that that I care about are the size and the magnets, I poured a bottle of Reaper's Brush-On Grey Primer on it and roughly spread it out. I had a couple bottles from before I switched to Stynylrez, so I can do a second coat. I'm not concerned about a perfect coat, so I'm just tossing it on.