Who doesn't love a party? Kinds especially love a parties. So here is a quick post with some ideas.
First things first... You need a theme. At this point you should be involving the the little ones. The most important thing is exercising their imagination. Anything that gets them creating is all you need. Any party should have games, yummy food, and and something to wear them out. You can do this at home, or better yet in a park with a wicked playground. The more you can intertwine all of the above the better.
So lets say the theme is robots. Bring materials to turn them into robots! What kid (or kid at heart) wouldn't want to be turned into a robot for a few hours? It doesn't have to cost much. Thankfully robot materials are very inexpensive. Think aluminum foil (remove the sharp edges on the cutter), old card board boxes, makers (no sharpies - dry erase is best, assuming you don't like trying to get those stains out), anything shiny, tape, maybe some paint (might be messy though). Now incorporate the games and food into the fun. Robot cakes (square cup cakes), have robot races, robot freeze tag. The possibilities are endless.
I my experience anything that you can do to exercise the imagination will work out well. Having the young ones create their good time isn't hard. Just give them some basic materials, and let them do the rest. Imagination is a powerful thing at early ages, let them run with it. All you have to do is provide the spark. It doesn't have to be robots, it could be fairies, princesses, cowboys and indians. Anything will do just bring so basic materials to let them create their own party.
Now that's how you throw a party (with less).