Fill your kids’ your toy box with new LEGO sets for less, thanks to Amazon’s BOGO sale. Right now, buy one LEGO City set, and get a second one for 40% off when you add qualifying sets to your cart. Build your own police station or cargo plane, or get both with this deal.

FYI: The only way to tell if the set is part of the promotion is to click into the product page, scroll to the bottom, and see this: