94racing-ie via eBay offers the Home Solutions 10-Piece Stainless Steel Storage/Mixing Bowl Set for $6.69 plus $1.89 for shipping. That's a slight drop from our mention from a month ago and the lowest total price we've seen. (It's the best deal now by $2, excluding the below mention.) This nesting set includes 1.25-, 2.25-, 3.5-, 4.75-, and 6.5-cup bowls, each with a clear BPA-free plastic lid.
Note: This item ships from mainland China and is expected to arrive within three to six weeks. Want it sooner? GearXS via eBay offers it for $8.99 with free shipping.