Over the course of a few days I created a large scale mural for the wall, all freehand cut from dollar store posterboards. (Two sheets for a dollar!) I arranged everything to look like a level in the game, complete with the castle and flagpole at the end. The flagpole later became a pin-the-tail type of game -- Pin the flag on the flagpole!
Another party game I created was a "memory" or "concentration" game. The posterboard squares are about 7 1/2" square.
On the flip sides of the squares, I created more posterboard characters. Once again, a lot of work, but it didn't feel that way to me!
I have a few more fun things from the party to share -- stay tuned! :o)