Spread kindness with Artistro! Join our #kindnessrockchallenge to make someone’s day better today! All you need is a rock and couple of paint pens. What would you write on the rock? Tag us in your stories and posts #Artistro #paintpens #paintmarkers #posca #sharpie #poscapen #poscapensl #paintpen #paintmarker #markers #Paintedrocks #rockpainting #paintedstones #paintingrocks #paintedrock #rockart #stonepainting #rockhunting #rockhiding #paintedpebbels #stoneart #mandalastones #pebblepainting #mandalastones #pebbleart #thekindnessrocksproject #rockhunting #paintedrocksofinstagram #kindnessrocks