You have got to have a Hollywood themed party! Everyone can dress up like moviestars. Have the kids make stars with their hand and foot traced on. They can then sign their names elaborately. Decorations are a must; all you gotta do is glam things up! Glitter, stars, film, fake Oscars, movie posters and so on. Gold and black! You can even put up a fake "Hollywood hill." Have the kids watch movies, dance, do scavenger hunts for everyday objects, play movie games, and so on. You can have contests like who can blow the biggest bubble with gum and/or liquid detergent (or something like that). Have them see who can lip-sink to songs the best, or maybe who can act or impersonate like a specific movie star the best. Have a big star cake for the birthday boy/girl with their name in cursive with a little hand and footprint on it. It will be great! Soda and ice cream on the side of course. Give party favors of sunglasses, bubbles and other stuff. It will be a hit!