Walmart has the Disney Lightning McQueen Pedal Go Kart for $59 with free shipping. Comes with an adjustable bucket seat to accommodate drivers of different heights, wheels roll effortlessly across various surfaces without becoming stuck, steel, tubular powder-coated frame.
Walmart has the Meccano Erector Aerial Rescue Building Set (SM6028598) for $13.99 with free in-store pickup or $5.99 shipping to home. List price: $30. It includes 406 pieces and instructions for 20 models.
Amazon has the Step2 All Around Playtime Patio w/ Canopy Playhouse for $150 - $25 off with coupon (Clip Coupon) = $125 with free shipping. Has excellent Amazon Reviews.