Simon, Lawry and I did a silly thing for Radio 4's comedy advent calendar, which you can find here . Have a listen to the others, too- there's some great stuff on it.
I also wrote the one which will go out on Christmas Eve morning, read by none other than Julie Walters! I know! (Warning - it will be fairly baffling if you're not a Radio 4 listener. It's pretty in-jokey.)
Anyway, hope you have a great holiday - perhaps even an unforgettable one, if someone close to you has been to this shop: