I've been working as a Professional Custom Framer for over a year now. Seeing so much variety of pictures and items come through, I've started to experiment with different things you can do with framing.
Here is a shadowbox I made using parts of my own artwork:
I used an intaglio print I had made and cut out pieces of it. I used a sheet of hand-painted paper to line the back and sides and I used plastic spacers and wire to float the tree and form the branches, and pieces of foam board to lift the birds.
I didn't use glass, instead I used plexi, and carved an image into it, and used it as glass for the frame.
There's a ton you can do with a simple frame, try some new things out! :)