Recently I was given two keychains to review. They came from Wholesale Keychain. I must say I'm very pleased with them.
The first was a Boston Bruins Keychain and Bottle Opener, which I've "tested" on a variety of domestic and import beers. It's handled everything from Sam Summer to Newcastle Brown. And you have to love anything that's associated with both beer and the Bruins.
The second was a USB Flash Drive Keyring. This little nodule has a 1.0 GB capacity. That's not mammoth, but you can squeeze the flash drive between two fingers. It's going to be a permanent addition to my set of keys and will be a convenient way to convey documents, pictures, and videos from one place to another.