There are several. The Raksha charm Transient Work of Flesh and Bone does it, so does having the 3rd circle demon Madelrada around.
Plus, Artifacts N/A are your friends ;)
After watching the excellent anime of Fate/Zero, I have become interested in reading the Epic of Gilgamesh, and I was wondering if anyone on rpdom had read it either in one of the "originals" or an adaptation, and if so what they can recommend. Any advice is welcome :)
Slightly off topic...