Easy To Make Stone Art - write message on rock with pencil, Use Dremel w/grinding stone, run over pencil mark once to create groove, go over three times or until you reach desire thickness. - now I just need a dremel.
Fun art project with the kids! Easy abstract painting that anyone can do! Just blob the paint on the canvas in random spots and blend! (would be interesting how students could make different pictures w/ the same colors and same blob positions)