The motto here is: "Life's too short to play clean." So the dirtier, the stickier, the better.
"So everything they tell you not to do, you can do at this festival," said Tiffany Schultz, the organizer of Messy Fest.
Kids are able to do things like tug of war in the mud, painting with pudding, a shaving cream showdown and a food fight.
The rules? There aren't any when it comes to staying clean. The hope is that families will put down the electronics and spend some time together — even if the kids are covered in everything possible.
If you're thinking, “How in the world am I going to clean up after this?” there will be a human car wash with a lot of soap.
Shultz says to be sure to bring towels. The Queen Creek Fire Department will be on hand to hose families down.
"There will be plenty of water to rinse off after you have a messy good time," said Schultz.
Messy Fest runs from 9 a.m. to 3 p.m. on Saturday, Sept. 16 at Horseshoe Park in Queen Creek. The event benefits Phoenix Children's Hospital.