I already have used holograms of this sort for the bars etc.  I had originally considered "SELF FUND" but I'm not at the point where I'm irreversibly committed to the text, and "ZERO BTC" twice, next to the address, is probably more likely to send the right message to a broader audience.  The word "SELF" might be misinterpreted (who's self? myself? yourself?), and so might "FUND" (verb? noun?)... but "ZERO" has a pretty clear meaning, and so does "BTC".