I just bought some Aurifil invisible thread and it doesn't look very shiny. I bought it through jhittle (
http://jhittlesewing.funoverload.com...ew_items.html. However, it is a very large spool and I don't know how much you use.
I looked further on the net and here is a smaller spool from another vendor(
http://www.redrockthreads.com/misc-t...ble-thread.asp).