Party Showcase has an event at Congregation B’nai Israel in Millburn, 11 a.m.-2 p.m. New Jersey’s #1 party showcase for help planning a bar/bat mitzvah, wedding, sweet 16, or party, offers 25 vendors including DJs, photographers, videographers, party and photo favors, entertainers, balloon specialists, invitations, photo booths, variety entertainment, and a kosher caterer. Gourmet food served. 160 Millburn Ave. (908) 665-4165.