Power-ful via eBay offers a pair of LED Logo Shadow Lamp Door Step Lights in Black for eight different car makes from $3.22 plus 75 cents for shipping. That's tied with our mention from a week ago as the lowest total price we've seen. (It's the best deal now by $3.) They install with an included 3M sticker and can be controlled automatically or manually.
Note that this item ships from mainland China and should arrive in three to nine weeks.