I saw some of your beautiful Barbie cakes in your photos!
What if you made a Barbie cake kind of like that with the wondermold. But instead of making a long dress, you made a tutu from fondant and made the legs from fondant along the wondermold in a ballerina position ( I don't know them but I've heard of 1st position, 5th position etc.). Or maybe you could make a large round cake with the 6 in. round on top to have the depth to stick the doll in and use the 6 in. to make the tutu all frilly on, and then make it so she is like doing the splits with the fondant legs extended out on the bottom cake? I wish I could do drawings on here; sorry-I'm too mokey pawed w/ the computer