The 2nd annual New Haven Chalk Art Festival will be held Oct. 21 from noon to 4 p.m. at the Shops at Yale, 56 Broadway, across from Apple, J. Crew and Urban Outfitters.Participation is free and open to the public. The grand prize is a $1,000 gift card from Hull’s Art Supply and Framing.There will be a kids’ Free Style Zone in the Thali Too courtyard, with free chalk for the first 100 kids. Register at theshopsatyale.com/chalkart. Rain date is Oct. 22.