Walmart offers the LEGO Creator 3-in-1 Rocket Rally Car Set for $15.99. (Amazon currently offers the same deal with free shipping for Prime members; Target also offers the same with in-store pickup.) Opt for in-store pickup to dodge the $5.99 shipping fee. That's the lowest price we could find by $5. This set includes 241 pieces and instructions to build a sports car, jet truck, or quad bike.