The Chapel Chronicles has a special Halloween strip, Chapel tried on a Gorgeous Period Dress, the Tardis from Doctor Who, finally deciding to wear the outfit of Cardcaptor Sakura with her hedgehog dressed as Kero-chan. Interestingly, sometimes events from the Halloween party strips (and from other holidays) would affect the main Bob and George continuity, and sometimes they didn’t. Exterminatus Now does this every Halloween, though they subverted it one year by having trick-or-treaters in various popculture costumes and the four main characters doing nothing special.