As a warm-up to Twine, I thought this neat little comic strip editor might be of interest: http://cmx.io/edit/. In short, it allows you to generate stick-figure comic strips using HTML-like markup. The only drawback right now: I don’t think the strips are very portable. To save your work, you need to create an account on github and copy your markup over to your own account. But you can freely edit/modify the sample on the page above to see how the whole thing works.