I know several artists capable of creating what you are looking for but before you move forward understand that the cost is substantial (a few hundred dollars) to have it designed... and high resolution printers (the ones good enough to make your mini look nice) are very expensive and so they charge a premium for one offs.
If you are still interested I can help shoot me a pm.
Yes, I'm a ninja. No, I won't show you my moves.
I do not sleep, I wait.... It's a ninja thing, you wouldn't understand.