This Back to the Future Birthday Cake was for a young man turning 30. He grew up in the 80's and his wife wanted the cake decorated in some of his favorite things like the Back to the Future logo along with THRILLER, MJ white glove, rubix cube, PAC MAN, MTV, NKOTB, boom box and cassettes. The layer sizes are 6, 8 and 10 inches all covered and filled in BC. The decorations are all marshmallow fondant. This cake was so much fun to do! Thank you CC for all the ideas!