gasp Now I want to start adding Creative Commons sigs to all of my posts, too! The links will quickly becoming annoying, but I can just reuse an uploaded pic - some fonts actually have included the Creative Commons code space (1F10D-1F10F, 1F16D-1F16F, but it's not reliable yet unless you can control the display font like in web or a applications.
Edit: bummer on the glyphs; they don't show up in my client, and changing fonts on Android is stupid hard. Gonna have to resize that image, too; it sort of dominates everything.