[shmeeed]

Good question, IANAL.

Obviously you can go further: What if you just draw up the whole thing with a pencil? What if it's an ID identifying you as a citizen of Nowhereistan? Where does freedom of artistic expression end and a forgery start?

Again, IANAL, but I suppose it would qualify at least as fraud once you try to use even an obvious fake as "proof of identity" in place of a requested government issued document. In that case, there's an intent to deceive that's hard to deny, even if it's just about age verification for access to a digital platform.

I could imagine in court it might come down to details, like whether it's sufficiently similar to a real ID at a glance, or whether tamper-proof marks of an official ID were copied as well.

In any case I wouldn't want to risk up to a year of jail time over a joke.