Custom card holders for oddball sized cards?

[beaverman3001]

Can anyone recommend someone who makes custom card holders or a good way to display oddball sized cards? I bought a card that I did not realize was oversized (5x7) and seller failed to mention that. Anyway, I'd like to still be able to display it in a nice magnetic or similar looking case that matches the rest of my cards, and would rather not ship it off to psa/bgs for slabbing.

I know there are some people who make custom sized cases for booklets, so hoping there is someone who makes them for oversized cards as well, but I've had no luck finding them.

If anyone has any ideas I'd appreciate it.