OK - my twins turn three on July 5th.....and I'm thinking of the following idea. As they are boy/girl, of course they want different things! My daughter is into Disney Princesses" and my boy bounces between Lightning McQueen/Mater (Cars) and Spiderman. So I was thinking of doing a castle cake and parking toy cars in front of the castle with a toy Spiderman hanging off the castle somewhere. What do you think? Any suggestions?