USB Flash Drives are great because they are not only highly useful, they look good and will really leave a lasting name for you. There are some many types to choose from depending on you target market.
The Twister Series is stylish and practical to use. It is the highest selling model and you can understand why. It is very simple and does what it says on the can.
The Credit Card USB is great because it can be stored in your wallet and gives a different edge. Whilst it's more expensive, it gives more of a wow factor. On the down side it's not as easy to use so may not be used on a day to day basis.
The Wristband USB combines style with practical use. Probably more targeted toward the younger market, you can just imagine kids going to school with these on their wrists. As soon as friends start asking about them, the craze will start!