Today I discovered Wordle - a tool that creates free-to-use graphic arrangements from lists of words - for example the words used in a website. http://www.wordle.net/create
Here's one for Blogger-HAT, to give you an idea - but there are lots of options and customizations, so lots of looks that can be achieved.
After you've made a wordle, the easiest way (IMHO) to get it into your blog is to do a screenshot, then use Paintbrush (or some other very simple picture-editor) to save it as a PNG file). The it can be loaded to your blog like any other picture.
