I think Arial Bold is as close to an official font.

I actually searched for "customizable" tagged coins on thingiverse (Customizable i think means openscad models), and found a bunch:
https://www.thingive...;dwh=965abaae707f977https://www.thingiverse.com/thing:127588https://www.thingiverse.com/thing:47484https://www.thingive...se.com/thing:1703911https://www.thingive...se.com/thing:2448171 <-- this one even has text around the edge(!)
https://www.thingiverse.com/thing:185184
In our case I'm thinking like a 2-3 inch diameter coin "base" -- with cody sitting/standing on it (glued or pegged).
So actually the center of the coin won't be too visible I guess, since cody will be on it. But you could imagine curving at the top of the "coin" it could say DONATIONCODER.COM and curving at the bottom it would say some text that would change depending on the award, like "N.A.N.Y. 2020 AWARD" etc.