The 2,314-piece R2-D2 display model was officially retired by Lego in January, so this set was already hard to find.

One of our all-time favorite sets, the Millennium Falcon Building Set, is now 20% off. A popular replica Animal Crossing set is now 56% off ahead of Prime Day. The Young Simba replica building set from Disney is now a whopping 50% off for the last day of Prime Day.

Right now, the LEGO Star Wars Imperial Star Destroyer can be obtained for just $111, down from its regular price of $159. This huge 30% discount marks a new all-time low and with over 10,000 units sold in the past month alone, this set inevitably might sell out soon.