Every since coming back from the Classic last year I've had the family more aware of the "cave man, oooga booga life style". My boy Silas started this project a couple of days ago. Taking red red sand stone creek rock and smashing it down into dust. Once I started helping, things picked up and I taught him to use his head. Not to smash rocks, but to think. We got an old "copper" salt shacker from the sand box and put the smashed rock in and sifted it, then we smashed the sifted stuff some more, then I got an old diner salt shacker from goodwill today for $.49 and we took four layers of door screen and put it under lid, then sifted it again. Found a coconut shell in the compost and mixed our sift with some creek water. I used a stick, Silas found a chicken feather. We draw in the dust on our cars all the time and have done other rock paintings, but I really like this one he made. Thanks for lookin! dpgratz