Haven't come across one myself. Definitely interested though.
You could start a thread in /g/ and see what gets shared. Many of the Gore & Death threads have a theme. It's especially helpful if you can share some art that matches what you're looking for to start things off. I've seen some pics I'd call "light" gore/necro/snuff, but it's always mixed in with the heavier stuff under some other theme.
Why do you keep bumping month+ old threads?