http://www.nexusmods.com/grimrock/mods/359/?
I haven't been able to settle yet on what I want to do for another mod, so while I'm mulling things over I figured I'd post the assets I've created so far. Creepy Dungeon has a bunch of odds and ends for giving your mod a, well, creepy feel. It also has a tiny sample dungeon with a couple of levels which is really just my workshop for trying out the assets. There isn't anything to be afraid of unless you fear snails, but it's enough to get a feel for it and see what's included. I've sprinkled notes here and there as creative inspiration for any would-be modders.
Mod and source at the link. Happy modding!