Oh, the possibilities! Approx. 7" tall x 4-1/2" wide (and 4-1/2" deep).
Laser-cut heavy chipboard. Ships flat but a breeze to put together with the slots and tabs precut (you'll just need to secure with a bit of white glue).
The Old Folly by Lora Mahaffey; See the Supply List.
More info in the blog.