Here are a few more. i made two completely transparent fonts so you will only see the outline of the font but you will be able to see your wallpaper right thru the font. This clock is dynamic and looks different depending on your wallpaper. But from the screenshot you can see my wallpaper inside the font.
Transparent with White outline:
(best with darker backgrounds)
File: Flip.Clock.Trans2.mf
Transparent with Black outline:
(best with lighter backgrounds)
Flip.Clock.Trans.mf