All Custom Cakes Must Be Ordered At Least 24 Hours In Advance. Las Vegas sweet sixteen cakes come in a wide variety of styles, but none of them are quite as beautiful as the Ivory and Roses design. Elegantly covered in quilted ivory-colored fondant, this sweet sixteen cake glitters with two bands of glittering trim at the bases of each of its round layers. Tiny edible pearls create a distinctive pattern on the sides of this rose topped confection, which is baked with the sweet sixteen cake recipe of your choice. This confection is so beautiful that it should be displayed on an elegant, silver sweet sixteen cake stand.