Disco cake was made for granddaughter's 11th birthday. Two layers of white cake with cream filling were covered with white buttercream and then air brushed with rainbow colors. The battery operated disco ball rotated on a base that was secured in a hollow in the first layer. A multicolored fondant wall was made to conceal the ball cone base. Silhouetted disco dancers were cut from gray fondant and then air brushed with black food color. Peace symbols were made from colored fondant, dried, and then placed on cake plate.