Ply-split is a kind of weaving, but the multi-plied threads are woven through in place of over and under each other (ok, I understand, that this description isn’t very good, best take a look at the links below ;-))
In my entry Freeform Embroidery you can see at the bottom of the photo, too, how ply-split can look.
The photos show my attempts at ply-splitting, you can get a muuuch better idea by browsing the Google image search.
I once even tried to make a pendant with this technique, but it didn’t really work.
Anyhow I still like the combination of ply-split and beads.
Linda Hendrickson Tablet Weaving and Ply-Split Braiding: scroll down to ‘Ply-split braiding’
On the same site you can find articles about ply-splitting: click in the left navigational bar on ‘Links’, then click on ‘Ply-splitting’, then click on ‘Articles’, then you find 3 articles from Weaver’s
Ply-Splitting at weavershand: links to galleries, instructions and websites of ply-split artists
Instruction: Ply-split darning Bookmark: click in the left navigational bar on ‘Ply split braiding’, then click on ‘Begin Braiding 2d Ply Split’
Instruction for a ply-split scarf as PDF (ca. 156 KB) – it looks to me that one have to have some experience with ply-splitting
Instruction for a beautiful snake – it looks to me that one have to have some experience with ply-splitting