SURPRiZE U is a dessert shop in Mong Kok and Diamond Hill that makes custom character cakes. Its planet cake is opened by tapping with a hammer, revealing marshmallow and sponge cake inside a white chocolate shell, and buyers choose the flavor, color, size, and character. Orders are placed through the official website, where the map and pickup instructions are posted, and the character inside the cake can be washed and kept as a souvenir. Deliveries sometimes arrive late or with the cake tilted.