522-Piece LEGO Creator 3 in 1 Sunken Treasure Mission Submarine Toy (31130) $20.99 Amazon has *522-Piece LEGO Creator 3 in 1 Sunken Treasure Mission Submarine Building Set* (31130) on sale for $27.90 – $6.91 when you clip the coupon on the product page = *$20.99*. *Shipping is…