Very nice is the "Black Flag" with the ship your logo that you would use on all your labels?
Additionally what would look cool is if the edges of the label looked burnt.
These are basically for whatever is on tap that I don't have a specific taphandle for. I don't usually put the Black Flag logo on the other taphandle designs because I fear that I will decide I don't like the name at some point.
I put the logo on everything else, though... I really should consider putting it on all new taphandle designs. Either you're committed to your branding 100% or you're not. Dammit.
I thought about doing burnt edges, but I worried it might not come through well enough on the finished product. I did it on the cover of my Brewer's Log Book, though. Looks really cool there.