Big Boys Toy Store Sumo Sale Year Two | May 14-19, 2018 Up to 70% on Toys and Collectibles! BUY 1 TAKE 1 on POP!s and more surprises awaits you at the SUMO SALE! – Year Two May 14-19 at Promenade Hall, Greenhills. Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)