Amazing artsistry W fondant these days, but before this, I made sheet cakes for the kids with a filled, miniature wooden buried treasure chest that I would 1st wrap W foil, BURY IN THE BATTER BEFORE BAKING. X would mark the spot. The chest contents of mini coins even mini-plastic pearls did well in the baking. The kids were crazy about it. Also, a treasure hunt @ the party is a must.