I did a post a while back about window markers and how I find it's an easy, quick activity when you are in a pinch. Well, sadly our markers dried out very quickly. I'm not sure if it's our hot weather that did in the markers or if the quality is poor. So I replaced them with these washable window crayons and I'm happy to report the colors are more vibrant than the markers and no drying out! They come in five colors red, black, yellow, blue and green. These are made by Crayola.