However, I did find a really bad holiday-related pun I can share:
I had a nightmare that I was in Panama during a snowstorm.
I was dreaming of a white isthmus.
Ouch, bad, I know, but I just couldn't help myself. I found this wonderful bad pun site and I've been giggling to myself all afternoon. My Dad starts pun wars from time to time, and I'm usually too busy laughing at my Dad's, DH's, and my sister's witty (but often bad) puns to participate.
I'll spare you any more bad puns. If you're a glutton, you can go check out that site yourself. Don't say I didn't warn you!