Walmart again offers the Mattel Hot Wheels Mega Hauler Truck, model no. CKC09, for $9. (Amazon has it for the same price.) Opt for in-store pickup to avoid the $5.99 shipping fee. That's tied with our expired mention from four days ago and the lowest price we could find by $6. It features six expandable levels and holds 50 cars (not included).
Amazon offers Prime members the Mattel First Act Barbie Dynamic Microphone, model no. BR924, for $5.46 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $5.59.) That's $5 under our December mention and the lowest price we could find now by $2. It includes a patch cord.