In Spain there is an important tradition where a cake is made called the Rosca de Reyes. Hidden in the cake is a figurine of Jesus and whoever gets the piece of cake with the figurine has to host a party of 2/2.
References:
http://www.latintimes.com/what-dia-de-los-reyes-6-facts-about-three-wise-men-day-latin-america-361829
https://www.timeanddate.com/holidays/spain/epiphany
http://www.lib.utexas.edu/maps/world.html
https://www.pinterest.com/ajcain92/epiphany/
I have neither given nor received unauthorized help on this work.