I was thinking about this myself. Though, if you want purple with thick Cherry profile I am afraid you will need to meet at least 400 set MOQ and I am not sure about how easy it would be to get a specific shade, I think custom color MOQ was something around the 1000 mark.
However, I had idea that if you did it on white set, you could do the yellow/orange/red gradient with black outline like the logo style for all the alpha numerics in the MK font.
You could do some extra keys with the character portraits in full color, and other cool things like that with white base.