Hi DShock,

A trick to do the same thing after you've laid down your base of black thread (say to tie in a tail, rib, etc) is to tie in some flat tinsel, wrap your thread forward, then lay a layer of silver tinsel, then wrap your floss over top. It does bulk up the body, so this is usually ok for streamers but not spiders. If you spiral the tinsel, leaving gaps, or tie a strip of tinsel and lay it along the top (or bottom) of the shank, then wrap the floss, you can get some subtle changes in colour. Overwrap some brightly coloured tinsel with a thin layer of white floss can look good too.

- Jeff