Our very own Miss Cellania wrote a really neat article for mental_floss about 8 truly strange Christmas customs. This one to the left is "Caga Tió" or the "pooping log.":
The Catalan custom is still celebrated in Spain, where you can buy your own el Caga Tió. The log is hollowed out, with legs and a face added. You must “feed” him every day beginning on December 8th. On Christmas Eve or Christmas Day, put him in the fireplace and beat him with sticks until he poops out small candies, fruits, and nuts. When he is through, the final object dropped is a salt herring, a garlic bulb, or an onion. Oh yeah, there is a traditional song the family can sing to encourage the process.
hazelnuts and cottage cheese,
if you don’t poop well,
I’ll hit you with a stick,