Buy.com via eBay offers the Centon 64GB DataStick Waterproof USB 2.0 Flash Drive, model no. DSW64GB-001, for $59.99 with free shipping ($0.94/GB). That's the lowest total price we could find $11, although we saw it for $5 less last month (since expired). This USB drive features a waterproof and shock-resistant case. Deal expires October 26 at 11 am ET.