What could be possible is that the winner decides a special colour combination for an novelty Esc key.
Of course there would be the normal vintage-grey-Esc but also an additional one in - for example - yellow on purple or whatever the highest bidder decides.
EDIT:
decided to create that combination to see what it looks like (obviously not the right font there..)
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Well Okay, lets assume that it is a basic, full name that is going towards the overall name of the set. If I were to win, with my current bid, the keycap that I would be looking to have as the ESC key would be RCT (or R.C.T.). Vanity, in the end, is the fuel for fires. Now, if someone else were to win, I would say a simple design of their choice could be used as the "official" esc key alternative for the set.
Interesting idea. I do see both suggestions as outside the scope of the effort. It could be done in a separate effort.
What we are doing here is legends that can be used to make keycaps. For zirb's suggestion, the legend is already done. So making keycaps for with a custom color combo of the winning bidder's choice is possible. The issue is that would be up to the actual group buy organizer to create that keycap. It definitely could be done, but would be done outside of this adoption drive.
For RCT's suggestion, the fund from the winning bidder can cover the cost to create the special legend. To actually make keycaps out of this special legend, again, it will be up to a keycap group buy organizer to drive it. the legend can be cut. How the keycaps will be made will be outside of this adoption effort.
Does it make sense? Or have I misread what you two described?