Spongebob was shaped by cutting two 1/4 sheet cakes into thirds and stacked. It is yellow cake with fudge filling. Gary was made by my daughter (She is amazing, gosh I love this kid, hehe) he is all fondant. The Krabby patty is made from strawberry cake with strawberry filling. I am a little nervous because Spongebob is leaning a little bit forward and it has to travel an hour away to get to my friends house...Ugh, I hope he makes it.