Turn yourself into an app icon!
You want to create icons for your webpage or blog, and you really want to rock an iPhone app look and feel. This site gives you multiple sizes for download, and even throws up a screenshot of what your icon would look like on a device!
"This tool generates iPhone/iPod icon from any image. Glossy, corner rounding and shadow effects are applied so icon will look exactly like on iPhone/iPod or iPad (original icon masks are taken right from firmware)."