Sharraxaadda

I was walking my dog this morning and I noticed some chalk art in the middle of Wooster Square park. It got me thinking that chalk is an unappreciated medium, even a repressed one, going by this example: http://www.wired.com/politics/onlinerights/news/2007/04/kinberg_0410

So, I think it's time to do right by by water soluble graffiti. What do you all think about keeping Tupperwares of colored chalk in our park? On dry days, shop keepers should keep out cans of the stuff so passers by can partake. How about we designate a Sidewalk Chalk Day. Make it a mandatory school/work holiday so everyone can participate!