This may also be of interest;
http://www.sewserg.com/products/abp03827.html

and these;
http://www.sewserg.com/products/abp02630.html

http://www.newarkdress.com/nylonthread.html

A search on "bobbin thread", and similar, will turn up many more. Although
you will be extremely lucky to find the Lily thread you are looking for.

TL
MC