Swap for Kids, Macaroni Kid and The Green Project host a free costume swap and pumpkin painting party for kids from 10 a.m. to 5 p.m. Friday, Oct. 5 and Saturday, Oct. 6 at Swap for Kids (7722 Maple St. 504-218-5996; www.swapforkids.com). Exchange old costumes now through Thursday, Oct. 4 for a costume voucher and redeem it on Oct. 5 or Oct. 6.