For its Prime members, Amazon offers the Brinkmann Steel Shish Kabob Set, model no. 812-9021-S, for $6.97 with free shipping. (Non-members can spend $35 or more for free shipping; otherwise, it adds $7.99.) That's the lowest total price we could find by $5. It features a non-stick surface and six skewers.

It's also available at Home Depot for $6.97 with free store pickup, although current stock may vary by location.