This Saturday, at the grand opening of the snackfest–cum–flea market Hester Street Fair, chefs Hannah Goldberg and Fany Gerson unveil La Newyorkina, a gourmet ice-pop stand with unconventional flavors—avocado, mango with pequin chile, fresh coconut—inspired by tasting trips to ice-cream shops in Mexico. The duo will hand out freebies, like this raspberry hibiscus mini-pop, to kids all weekend long (Saturday and Sunday, 10 a.m. to 6 p.m., at Hester and Essex Streets). For more from the fair (and its older archrival in Brooklyn), see here.