I attempted to make the Mickey Mouse Clubhouse for my son's 3rd birthday, not entirely happy with the head and ears. The head of the clubhouse is styrofoam as well as the hand and because of their ball shape i found them quite tricky to cover wit fondant. The shoe is RCT and neck and extension of foot are pvc pipe. everything else is cake and fondant (oh except for the characters so my son could keep them after). Thanks to fellow CC'ers for the inspiration and great tips. TFL !