Cake for Bake a Wish Austin. The requested theme for the birthday girl only said that she loves glitter, so I tried to make it as sparkly as possible. I covered the cake board in a shiny silver fabric and sprinkled a generous amount of disco dust on it for some extra shine, then covered it in food safe cellophane. Cakes are sour cream white cake with vanilla buttercream, covered and decorated with fondant. Fondant was brushed with platinum edible glitter; lettering and stars were hand painted with edible luster dust for more shine. Bow is made from fondant, brushed with luster dust, then sprinkled with disco dust. The gold and silver gem ribbons around the cake board and cakes are for decoration only and are not edible.