Hard Cover for Large Yaeltex

Has anyone found a good solution for hard cover for your Yaeltex unit? It was be great if DeckSaver offered generic small/medium/large covers for the current Yaeltex size, but I won’t be holding my breath for that.

My large Yaeltex control sits nicely on my desk, but my 11 month old son is starting to get tall enough to start doing some knob twiddling of his one, and potentially damaging some along the way. A solid cover would allow me to keep in where it is between sessions.

I anyone has suggestions, do please share.

Thank you!