OK; thought I posted this, but after a long time it still didn't show up; Oscar can delete this one if indeed I did post it. A few days ago, I created a new AOP called Signatures of Freedom. Haven't shared it yet (was planning on doing so, but haven't). I took all the sigs from the founding fathers (most of them came from wiki) to create the AOP file. I also created a seamless texture using the sigs (not that great; maybe you can do better) and included it in the set. Already mentioned, but looks like we have size constraints, so I'm posting external links to the AOP file and below's the result (got George Washington from his wiki).
Now that is an interesting image.
I am amazed at what can be used for brush strokes in DAP.
I have tried a couple strange things but never thought of presidential signatures.
Well done!
All photos I use are my photos unless otherwise noted in the post.
For those who want to work at creating their own custom AOPs here are a palette image and a brush image that I had made available on the Frickr DAP group I made.
Go ahead and use them and also use them as ideas of where to start with your own brush and palette images.
I posted a few Feather AOP's on the original forum (hopefully Oscar can figure out how to archive/share that forum soon) but won't repost them, but I recently created a Feathers AOP based on somebrushes from Obsidian Dawn