A4C via eBay offers the manufacturer refurbished SanDisk Cruzer 16GB USB Flash Drive, model no. SDCZ60-016G, for $7.49 with free shipping. (B&H Photo Video offers it new for a buck more.) That's a buck under the lowest total price we could find for similar refurb SanDisk flash drive.
A 90-day A4C warranty applies.