I am using some of the new Kreinik Holographic Metallic thread on my ANG Stitch of the Month project.
The thread unravels.. It became enough of a nuisance, that I went for my Thread Zap. I heated it up and used it like scissors to cut a length of thread. It seared both ends of the fiber as I cut thru it. End of frustration. The Thread Zap can be purchased from http://www.needepointtooltime.com/.