Do you want a cool pixel button for your blog or website? Don't know how to handle image editing softwares such as GIMP/Photoshop? Or perhaps just plain lazy to create your own manually? If yes, this site can help you. It automatically generate a pixel button based on the spec you gave to the generator. Its easy and simple. They even gave away its sourcecode!.
This StumbleUpon button,
was created using the tool. (I couldn't find one that matches my taste from the official site, so I brew it myself)