HOW? and CAN SOMEONE MAKE FOR ME.
It is VERY easy to make. You bake four cakes in circular tins. One of these will become the bottom, so you place that on your cake board or big platter. Two will become the middle, and the final, obviously the top. Add a layer of your cream/jam/icing to the bottom cake. For the second layer, cut a circle out of the middle. Save the circle to eat later, because who the hell wastes cake? Place on top. Repeat this process for the third. You now have a hollow in your cake. Fill this will the candy of your choice. Add the top cake, and cover the entire works in icing or fondant.
Presto! Piñata cake!