I had an awesome 11th birthday party. It was a Luau Pool Party at my house  Invitations: I got my invitations from orientaltrading.com. They were little hawaiian shirts that opened up. They were really cute. On the outside of the envelope we put the persons name in Hawaiian. Everybody loved them.  Decorations: We again...got our decorations from Oriental Trading. We got like, a limbo stick and blow up palm trees and aloha signs. We also got all of our plates and serving trays from there too.   Costumes: For costumes we ordered hula skirts, leis, and anklets. When everybody came thru our door they got to pick what one they wanted.  Games: Musical Beach Towels: It is the same thing as musical chairs except you use beach towels. Limbo: We ordered a limbo stick and music from orientaltrading and we played limbo.  Scavenger Hunt: This..was really fun. We split everbody up into two teams. My mom made lists of things we needed: (Blue Crayon, Paper Plate, gum, etc.) We had to run around the neighborhood and ringing peoples doorbells and asking them if they had any of our things. The first team back to the house with all the stuff wins.  I hope my party gave you an idea of what to do on your party.