I actually saw this on Pinterest...and I had to do it! I went and bought shower caps for the three little kids and ME, along with shaving cream and CHEESE PUFFS. I didn't say a word to them. Saturday afternoon, out of the blue, I told them all to come outside. I put the shower caps on everyone's heads among a whole lot of "WHAT are you doing?"! LOL Then I sprayed each head with shaving cream!!! They thought I was NUTS. I then divided us into teams and handed each team a bag of cheesepuffs (Kroger...$1 bags on sale!) and told the other team they better RUN!!! I then started throwing cheesepuffs at their heads, landing them in the shaving cream. It didn't take 10 seconds for them to grasp the game. There were cheesepuffs EVERYWHERE...and in the end, they got the shaving cream and we were ALL wearing it...but OMG...talk about a precious memory. Even my older kids ended up in the shaving cream war...and then we ALL ended up in the pool IN our clothes!!
My youngest crawled into my lap Saturday night and told me that when SHE has kids, she is going to do this with them one day!!! <3 Made all the mess and clean up worth it. :-)