Well, 6 X 6 packs. Special order for these from a guy to hand out to the employees of his company as a little thank you gift. They come apart like a puzzle and can be assembled and carried with no glue or fasteners of any sort. He plans on filling them up with beer before gifting them.
I just took a picture, made it black and white, got rid of background, and auto traced the rest, after that, just a bit of cleanup manually to make the lines look good. There’s probably a much easier way though ;).