First off is this repurposing of a picture frame I'd received as a gift.
|The frame holds a 4x6" print, to help you picture the scale.|
After a misadventure wherein I managed to break the (glued-in) glass while trying to remove it*, I took my hand sander, loaded with some fine-grit sandpaper, and thoroughly roughed up the entire surface, including the outside and inside edges.
|In retrospect, I could have sanded a bit more; after painting, you can still just barely see the outline of the design if the light is right.|
|I can't see these hooks without thinking of this.|
*The opening turned out to be just a tad smaller than 4x6, so I couldn't just use glass from another frame. Since I was just going to use a 15¢ print of a vacation photo, I cut apart the clear plastic top from a greeting card box to replace it.