Santa Claus Funnies
Because the personage of St. Nicholas has evolved into Santa Claus in America, I couldn't find any comic book covers featuring the 3rd century Bishop from modern-day Turkey to help celebrate his feast day. So I had to go with the Americanized version of the spirit of giving.
19 days Until Christmas!
And check out the other comic book advent calendars: Polite Dissent, Comics Should Be Good, and Yet Another Comics Blog