Kingston Technology 8GB DataTraveler 101 Gen 2 Flash Drive, Red #DT101G2/8GBZ for $4.95 + free shipping
Sold by Adorama, so it's trustworthy.
"The 8GB DataTraveler Generation 2 (G2) from Kingston helps budgetconscious users break storage barriers, allowing them to easily store and move files in a device no bigger than a pocketknife. As easy as click and drag, DataTraveler G2 can hold just about any file you can think of term papers, theses, digital images, spreadsheets or other important documents. It features a capless, swivel design for added functionality and ease of use and is available in five fun colors by capacity. It is ideal for anyone on the go, the new DT 101G2 with urDrive is like having a customizable, portable desktop - anywhere. DataTraveler 101 G2 is also a great promotional item for businesses; your company logo can appear on it to increase your brand recognition."