In 1999, the way I partied like it was, well, that year was by joining the National Cartoonists Society.
This entitled me to a copy of the NCS membership album from 1996—the 50th anniversary edition.
It also entitled me to an entry in the next edition. Rather than copy and submit my high school yearbook entry, I cobbled together something new:
That site is defunct but the cartoons live on.
Happy National Cartoonists Day. You are convincing in your act that you did not already know it was today.