In my country is hardly to find a mechanical keyboard that has the letter '?' on it, so, seeing the problem doesn't solved by itself, I decided to design my own mechanical keyboard with that letter.Currently, I do not have build it yet, however I will in the next months and I will upload to possible errors and fixs that I'll do for it.If you're interested of it, feel free to contact me to colaborate and do an excellent keuyboard.