Along with web banners, I've also been getting orders for business card designs. Here are a few examples...
Sometimes I'm given an existing logo to work with, or a pretty clearly defined idea of what the customer wants, but the really fun projects are the ones where I get to really create everything from scratch, like the ones above. Its a lot of pressure, because the logo and design needs to mesh with the customer's business, attitude, style, etc... but when it all comes together, its so satisfying!