I saw a quilt recently which was quilted with a fine-weight thread that sparkled. I'm not sure if it was metallic or what exactly and I didn't get a chance to talk to the maker. The quilt was a kaleidoscope. It was very pretty on it's own, however the thread brought it to a totally new dimension. I've been thinking ever since about trying some fancy thread.
If you use specialty threads for quilting, what type have you had luck with or do you like?