One year i had a wild and crazy party. I had all the kids wear their swim suits under some clothes they wouldn't mind getting a little dirty.  We had games such as limbo under the water (spray a hose out horizontally) whip cream hot potato if you get stuck with it then you have to put it in you face.  Then we had who could get to the golden coil in the bottom of their bowl of Jell-O first with no hands.  we had a water balloon toss!  Also we had a few "dares" like who would eat a chocolate covered frozen pickle and who would dig out 3 gummy worms with there toes out of a huge bowl of oatmeal.  We also had decorate your own cupcake with lots of different colors of icing.  We had lots of other games too, they were all held in out backyard and it was a BLAST!