http://kalsey.com/tools/buttonmaker/
I’m sure you’ve seen various rectangle images that show some combination of RSS standards, like this:
Well, if you visit the site above, you can make your own buttons, with your own colours, with your own words. Just to test it, I put my name in and moved the separator bar:
Keep in mind that the buttons are only 80 x 15 pixels, so if the words are too long, it won’t fit. For example, I could barely fit Merry Christmas into a button: