I just stumbled on this fantastic cinderella castle made from paper.It looks like it could be sent to any paint program and sized as needed.This is in german but the printable pattern has diagrams that are explainatory.
http://www.seite42.de/78_46e.htm. I then did a computer search and my gosh the endless possibilities for paper models to be used as gingerbread patterns are huge!!It looks like you could just print to your size needed and cut off tabs.I just wanted to share this with you because I read some posts where people were asking about a princess castle and using a dollhouse pattern.It looks like the paper models would work better that a dollhouse pattern.