So - here are the Wordsearch answers. Thankyou so much to all the people who entered!
The fibres were
I pulled names from a hat (well, actually, a yarn bowl) and pigwotflies was the winner of the sock yarn! Bekki, I'll be in touch via Ravelry. As I will with Stitched-together and dawn9163 - you've both won a set of stitch-markers, so I'll PM you to get an address...