For my son's 5th birthday we did a Ghostbusters theme. I needed something indoors, cheap and was hoping for non competitive (older kids win and then younger kids cry). So we opted for Ghostbuster training. I made manual for each kid...printed them on the computer. There were stations the kids had to complete to be a "real" Ghostbuster. In the garage we did an obstacle coarse...to test speed and agility. I hung a ball from the garage ceiling that they hit to show their strength. I made a target (and pushed tacks through) so they tested their aim by tossing water balloons. With the tacks almost every balloon tossed broke, even the ones thrown by toddlers. We did this on the covered back porch. And then inside we made slime, since Ghostbusters are scientists. I bought sheriff badges at the dollar store and glued no ghost signs (that I printed on the computer) to them. When they completed all their tasks they got a can of silly string (from the dollar store) and a Ghosbustin' badge. In the garage they sprayed the silly string at the ghost pictures that were hanging in the garage. Obviously most kids would NOT want a ghostbusters party, but this could be changed and modified for many themes. I borrowed this idea from a few superhero party ideas I found online, I kind of combined a few party ideas I found. I had a friend change it a bit and do something similar for a firefighter party and another friend recently asked if I would be offended if she "stole" my idea for a pirate party. It was fun, different, cheap and relatively easy. The kids cheered each other on and had a ball and there was no fighting or crying over anyone "losing".