You might want to check out Nymo thread. It's used by beaders and is super strong. Size D is fairly heavy - way heavier than required for PSK thread - and is available pre-wound on bobbins that run about 50 yds. These bobbins are generally plastic and fit nicely in a PSK - or you could rewind onto something else. In my kits I wind thread, tape etc. onto galvanized box nails (10d or so) since I like to have a couple nails with me. I just chuck 'em up in a drill and go to windin'. <img src="/images/graemlins/smile.gif" alt="" />
See 'Ya Down the Trail,
Mike McGrath

"Be Prepared" "For what?" "Why, any old thing!" B-P