Yarn! Yes, I dye yarn, and here are a few examples. All of this is 2/19 Inca wool (laceweight), that I dyed with professional acid dyes. I sold these on Ebay for an average of $25 for 8 skeins of 215 yards each.
I also wrote a guide for ebay about hand dyed yarns (brag alert) that won the 28 Guides in 28 Days contest recently. Here's the link: http://reviews.ebay.com/Hand-Dyed-and-or-Painted-Yarn_W0QQugidZ10000000000722871