Newegg offers the Kingston 16GB DataTraveler SE9 Metal USB Flash Drive, model no. DTSE9H/16GBZ, for $7.49. Coupon code "EMCAXAK49" cuts it to $5.62. With 99 cents for shipping, that's the lowest total price we've seen and a current low by a buck, outside of the prices below. It features a metal casing and keychain ring. Deal ends September 7.
Note: e-TechGalaxy via eBay charges $6.75 with free shipping, while Adorama has it for $6.95 with free shipping.