Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2441064.
These little guys cover up your unused USB ports to keep dust and junk out of them. Are they needed? No. But they look great with my Pi case. (https://www.thingiverse.com/thing:2391969)
I just wanted to cover up the unused ports on my Octopi setup. I have one for each printer so I only use one port (two with a camera.) This covers the other. There is one that covers 2 ports and one that is single. (You can use two singles to cover a double. They stack.)
Will these fit other devices? The single one will, the double one.. well your mileage may vary on that. It seems that most double USB stacks are close to the same size, but not all are.
I will upload actual photos at some point. I have these installed currently.