Silver Bells
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I vaguely remember seeing The Lemon Drop Kid on TV when I was younger, but Bob Hope as a bell-ringing Santa sticks in mind more than the song.
Some interesting points about the film:
It is based on a story by Damon Runyan.
It is a remake of a film of the same name from 1934. In the 1950 version, Bob Hope's character is called Syndey Melbourne. All of the character names were rather screwball, in fact.
One actor appeared in both films: William Frawley. Yep, good old Fred Murtz, landlord and wacky neighbor to Lucy and Ricky Ricardo.
So there's your bit of Christmas trivia. Enjoy.