I am doing a cake for a friend this weekend. She wants a tinkerbell doll cake..then I was going to put it on top of a sheet cake (9x13). I was already wondering about this..and now she called and needs it to feed more so I was going to do two sheet cakes, stack them and then put the doll on top. Will I need some kind of supports under the doll cake? I have never done one before so I didn't know how heavy they were, if I could just sit it on or if I need a cake circle and dowels under it??
Suggestions??!! Thanks!

Definitely put the doll cake on a board and insert dowels into the sheetcake under it. They're pretty heavy once iced and decorated.

You could do it without dowels but you'd be taking a big chance with all of your hard work. I'd dowel it to be safe

I have done this exact cake. Dowel it or it will sink. Good luck!

Thanks SO much guys! So glad I posted this!!!

When in doubt, dowel. It can't hurt!