The regular ones you can at least handle with the debug tool, then, no problem. Tattoos are mostly cosmetic, some NPCs might comment about them, but that's about it, with the exception of Sonya's, since I use it as a "milestone" in her path.
I did add the option in the debug tool for the other two tattoos anyway, since we talked about it (although it might be a while before the change makes its way to the public version).
Viewing post in Caliross, The Shapeshifter's Legacy comments
Well, the debug room isn't supposed to be part of the game, but it's there for anyone that wants to mess around with it, which is why the features aren't really advertised anywhere. There are also some testing options in it (usually for my own use), so people should be careful when looking around in there.