Sometimes, you need to make a name or logo look huge and well, kind of like a super hero. Here is a rendering for www.bobcad.com the company I cam working for now.
Knowing how to draw basic shapes with the pen tool, and coloring them with gradients, makes it easy to make cartoon style drawings with Illustrator. This one is perfect for a greeting card.
Most sites these days have an RSS feed icon, I put a slight angle on mine, and a slight glow and drop shadow. It is designed to pop off of a colored page.