Oya! Market (2360 St. Claude Ave., 504-575-9142; www.oyamarketnola.com) celebrates its grand opening from 11 a.m. to 7 p.m. Saturday, June 13 and Sunday, June 14. There will be live entertainment, craft classes, book signings and more. Oya! is a collective of entrepreneurs and features a storefront, performance space and work areas.