- Use an old window, paint it in the color you like, and stick some nice pictures behind the glass. You can also put some hooks on if you like.
- Buy lots of small frames, paint them and glue things on them (wood?). Glue them all together.
- Find some old frames, that you paint. Remove the glass and replace it with fabric and foam fixed to the wooden board that used to be behind the glass.
If you don´t want to make them yourself, you can buy them here:)
Images: Impressionen