The Tio de Nadal, or Christmas Log, is a mythological character in Christmas tradition spread through many regions of Spain, particularly Catalonia.
The hollow log typically stands on stick legs and has a smile painted on its face. The tradition kicks off at the Feast of the Immaculate Conception, when the log is given food to “eat” every night. Children are tasked with keeping the log warm and fed, in the hopes that it will poop presents on Christmas Day.
When the time comes, parents order the kids to leave the room and pray for the gifts they desire. This gives the parents time to place gifts like candles and nuts under a blanket placed on top of the log.