I frame quite a few of the things I make. I get 1x2 pine or oak at Lowes, I rabbet the back for the scroll sawn project and cut a 1/8" groove near the front of the frame. The groove holds a glass panel to keep the dust off. I cut the miters, slip in the glass as I'm gluing the frame together. The project is then inserted into the rabbet in the back. I use a sawtooth hanger to hang the piece.