Save big on the LEGO Creator 3-in-1Treehouse Treasures Building Kit. Grab it for just $17.99 at Walmart. (regularly $29.99) This features three different ways to build the kit, two mini figures, and 260 pieces. It is ideal for kids ages 7-12. Be sure to select free in-store pickup to avoid shipping fees. Otherwise orders of $35 or more will ship free.