Based on my typographic cubes. I’ll post proper images of them when the light is a bit better and I can be bothered to go somewhere interesting for the photos.
The idea behind the cubes is simple, and unfortunately not originally mine. Each side of the cube has a different shape on it, with which you can form the entire alphabet. Some letters work better than others. I could have some real fun with them, but at ≥6 cubes per letter, it will take a lot of time to make enough letters to spell anything worthwhile.