Toys"R"Us takes 20% off select LEGO sets, with prices starting from $3.19. Plus, get a LEGO Ninjago Airjitzu Set for free with orders of $50 or more. (Add one of these sets to cart to see this discount.) Shipping adds $5.99, or get free shipping on orders of $19 or more. (Select items may be available for in-store pickup). Deal ends March 19.