Doonesbury by Garry Trudeau for December 22, 1991
Mike: Who's that over there? J.J.: I don't know...Mike: Some sort of outsider. J.J.: We better check this out! Zonker: Hey, you! Holiday merry-maker! Have you always wanted to apear in a comic strip, but don't know if it was technically feasible? Well, now it is! Interact with a nationally known cast of cartoon characters for only the cost of a photo! Just paste in your mug, ink in your name, and join the fun! And for extra laughs, send it to a friend as a holiday hoot! Cheers! B.D.: Hey, look who showed up! It's our old friend, ________! Zonker: Lookin' good, _______! Character: (Write your own material here.) Mike: Glad you could join us, _______! Duke: I smell a narc.