How AWESOME this would be :)
I don't know about the feasibility, but I'm sure they would sell like hot cakes
It would work similar to what WASD Keyboards does for UV-printed ABS keys, but these would be Dye-Sublimated and PBT DSA, 100 times more awesome
For the sake of manufacturability, the wait times could be extended, it could be a month for certain colors, 4-5 months for other unique/rarely selected colors/sizes etc. but at least it would be at everyone's grasp
