7 .
The symbol of Christian faith can variously be a crucifix ('with a little man on it', as one rather insensitive souvenir shop-keeper allegedly once offered to a young pilgrim 'at the same price as the one without' ... ) or a plain 'empty' cross, which is simpler, more elegant ~ and expresses the belief that Jesus conquered death and left it behind, even after undergoing it in one of its most barbaric forms.
Almost incredibly, there are some devotees (other than 'mere' Passion Play actors), almost 2,000 years on from the historic event on the hill outside Jerusalem, who put themselves through a form of crucifixion, usually also on Good Friday and clearly not right to the point of death. Who, and where, are the most well-known examples of these?
Pious Filipinos, without the official approval of their local Catholic church
Trainee priests in the Catalan region of Spain
American Evangelicals and/or members of extreme local sects, in some more isolated enclaves of the USA
African revivalists in the sub-Saharan region (where formerly there was French colonial rule and cultural Catholicism)
(*Probably not three of them, nor necessarily kings; the Bible does not specify either such detail, though we may at least dub them 'the wise rulers', not least since they were knowledgeable enough to study the night sky, and wealthy enough to take leave of their responsibilities for as long as their pilgrimage might take, and wealthy enough also to bring precious gifts with them.)
A fairly widespread alternative time for such a cake to be eaten is around Shrove Tuesday (Mardi Gras, e.g. in New Orleans), beyond which such luxuries and frivolities are foresworn during the sterner 40-day fast of Lent.