Sorry, I was under the impression at first you were looking for one in braille.
lol Not good. :)
if someone has access to a machine shop and are willing to make these i would definitely buy them
If you find a solution to this problem please let me know! I so know where you are coming from!
I don't know if you know what letraset transfers are but I pondered if that might work, they'd wear off again but it might be an idea!