The top tier is an 8" chocolate cake with vanilla filling and covered in vanilla buttercream. The bottom tier is a 10" vanilla cake with vanilla filling and covered in vanilla buttercream dyed pink. All the detail is made from fondant with some tylose added to help give it some strength. I had to hand cut almost everything on the cake from the Grease logo, the dancers, the jackets and all the details on the 't birds' jacket. Not to mention all the tiles for the dance floor...talk about time consuming but I'm happy with how it turned out! Thanks to fellow CCer's for insipration!