There were some old picture frames in our barn. I took one of them that had no glass and [partially] spray painted it and then cut a cork board to fit in the empty space.
For some reason, the paint didn't stick to all of the wood the first time. (I didn't bother priming it, so that's probably why it looked this way.)
Instead of recoating, I decided I liked the 'weathered' look it yielded.