The invite! Yes, I know, I am a bit obsessive about making my own invitations.
The cake...Collin had so much fun helping with this one! He couldn't wait to put the Hot Wheels that he picked out on the cake. It was funny; the cake decor store was charging $2.50 for these plastic cheesy cars so we opted for the $.99 Hot Wheels instead that he could play with afterwards! The crowd is little teddy grahams, the race track is crushed up choc. graham cracker...all ideas stolen from a book (although I don't know the name - sorry!).
And, Oh, the presents! Collin knows all about birthdays and presents! :)