I've been tinkering with the GR editor since yesterday, and I must say the devs made an awesome job for modders!
Anyway, I cloned the torch class and made a lantern out of it, you can download the .dat and mod_assets here:
puppeteerinteractive.com/grimrock/Dungeon2.rar
Here's the model in-game ( made in 3ds max with a metal chain texture from the game ):
SpoilerShow

SpoilerShow


Hopefully I can make more advanced things later on, thinking of a wallset maybe.