The smallest was a little sliver of plastic which just slots into a USB slot, while the largest were two hefty metal Lexar drives that have built in encryption tools. The niftiest was a yellow lego-like device that allowed the top to click onto the body so you don't lose it when you plug the device into a USB slot...
A great way to distribute press releases. We'll suck the content off onto our server, and then donate the sticks we won't be using to local charities. It's also a lot less to carry back to the UK...