Neighbor Chalk is an international public art project that encourages people to create sidewalk chalk art in front of their homes and around their neighborhood to create a welcoming environment for their neighbors and passers by.
I hope they're aware of the fact that this apparently attractive and harmless practice is held to be antisocial and even criminal in some quarters:
'If it can be washed away, it's not graffiti. But'
Pavement chalking epidemic?
Footnote on pavement chalking
