My Party Idea!! Tell Me Wat U Think??????

Ok so i am having my 13th birthday party in my house which is pretty big and im going to music and food (ofcourse) but the theme will be elmo! i will have elmo everything! and at the party there will be helium ballons! 12 elmo balloons and 12 balloons that r red and black. And i am going to have the party guest names on the balloons. And then the day be4 the party im gonna fill up 100 water balloons 50 with shaving cream and 50 with out shaving cream. And im gonna have water guns filled with coke and water mixed together!!! and then we r gonna play games and stuffed and have a krazy string fight. Then wen we go to eat the cake im gonna make 1 and pretend it is my birthday cake. And wen i cut a slice and go to hand it to 1 of my friends im gonna smear it in her face! then the war begins! (but i will have a back up cake). And it will be a slumber party 4 all the ppl who want to stay the night. Wat do u think of it?????