It’s almost time to say so long to the Hester Street Fair for another year. This weekend’s finale will include a kid-friendly pre-Halloween celebration. There will be pumpkin carving, a costume contest and (are you ready?) an exotic pug petting zoo. Plus, there will be the usual mix of food and fashion. Among the food offerings, Langos House from Williamsburg will be offering up its signature Hungarian pastries. For more information check out the full lineup. The Hester Street Fair is open from 10 a.m.-6 p.m. Saturday, where Essex and Hester streets meet.