Every year, for maybe the last 5 years or so, every time I hear the song 'I Saw Mommy Kissing Santa Claus,' I can't help but think, in these times, that the real shock would not be mommy kissing Santa, but daddy. So I basically change the wording to 'I Saw Daddy Kissing Santa Claus.' I get a big of a kick out of it.
Of course, the censors might not like that, but if someone wants to steal it and record it for themselves, that's ok by me. Just remember where you heard it first!