Just purchase any of the LEGO sets included in this deal, and get the second set for 50% off. Not surprisingly, the 50% is taken off the item of lesser value, so your best bet is to look for two similarly priced items. Just add both items to your cart and the savings will show up at checkout – no coupon code is needed!
Since Amazon’s prices and promotions can change quickly, here’s a quick tip: To ensure that the item you’re looking at qualifies for this deal, click on the item and check for the “Buy one get one 50% off” message under the price. If so, you’re good to go!