Some time back one of our members tried to get some made but it did not happen for a variety of reasons. The problem is universal I think. With mine I stripped the silver stuff off and plasi coated it.
There is actually a part number for just the silver part without having to buy the whole fob - but with the key attached - assuming you have to order it based on your VIN number for the key to work - and not cheap at around 200 euro!
(although the pricing on the online ePER I use is normally completely wrong)
It's either 200 Euros or Plastikote it I'm afraid. Your best bet is to get a case to keep in nice in whilst not in use. Remember to prime it first, then plastikote it otherwise it won't stick and will just rub off.
We might be able to crowdsource a solution here.
If there are any designers amongst you, www.tinkercad.com provides a free online tool to create the schematic.
We might even be able to improve the design since the shape could be almost anything.