"There he is!" Cody shouted. "I told you he didn't go far." Beneath his helmet, Jojo grinned. He was sore and tired from climbing the walls each night with his spray cans, but it was all worthwhile if Cody believed Tomcat was really alive.
Artist Piotr Jabłoński has a series of these "Tomcat" paintings, which feature to kids in big helmets and a graffiti cat who appears to be alive. You can see more of the series at Behance and deviantART, and buy prints through inPRNT.