Happy Distress! is the newest Skin Deep texture; it's available on DriveThruRPG for only $3, and it contains 12 different files: eleven 8.5x11 300DPI distressed textures, and one larger 600DPI file that is a scan of the various pieces of duct tape that were used to create the analog textures. I thought they looked cool so I included them—they'll do some nice work making distressed type or edge work!
All of these graphics are Creative Commons licensed, so you can use them in commercial projects as long as you credit me. There is no limit on how you can use them or what medium (print, web, iPad app, etc.)
I also made a quick video that outlines the contents and has a quick demo on how these textures can be used to help quickly enhance a book cover:
I've also made a Skin Deep Sample Pack available, with 120DPI graphics from each pack available for free (not CC-licensed.)