thats some good spinning fibrenut! and sounds good ..you should surely give it a go!
tropicflower - i'm really bad at explaining things..heh
the first yarn is simply plied with cotton crochet thread
this is a nice knitty article that has some examples of "novelty" plied yarn
and thankfully i found this video that has the same corespinning technique i use, like in the 2nd yarn
i attatch a "core" yarn to my leader and start spinning to build up a bit of twist.. then i draft out a bit of fiber and let it catch and wrap around the core yarn.. being careful not to overtwist the core too much..i continue spinning like the video shows until i'm done!
the core yarn could be an overspun single or any commercial yarn.. i've used yarn recycled from sweaters too..as long as it is strong it will work well
it's really fun and helps stretch out little amounts of fibers