Galette des Rois

A French traditional cake served On the Festival of Epiphany. See here. Originally a fava bean was hidden in the cake, and later a small china figure. There is a wide range of different "feves" much sought after by collectors. Early ones were of Angels or baby Jesus, later more commercial figures such as Micky Mouse and the Eiffel Tower gained popularity, and more recently Madonna or Lady Gaga!