Gift packaging for cakes (financier). The picture shows the 15-cake size box (Two octaves). Usually, gift boxes simply line up all the cakes neatly. However, their boxes of individually wrapped cakes are different. they cut costs by focusing on only one design, and in making use of all six surfaces, they were able to recreate every type of keyboard. Using this design, they can create any keyboard size, from small keyboards, to full 88-key grand pianos, and even larger. For example, for one octave of 13 keys, they use 8 cakes. And an 88-key grand piano would be a gift box of 52 cakes.