do you crochet or knit?? There are very nice, soft, lightweight yarns out there that would work wonders!!! One that comes to mind is Lion Brand Microspun Yarn. It is a lightweight yarn, thinner than your average yarn, and it is SUPER SOFT and has a nice sheen to it!! It is 100% acrylic so it's not itchy at all. I made a scarf for my mom out of a eyelash yarn and used this with it. It really made the scarf softer. It also comes in a lot of colors!!
Here is a link to it on Joann.com:
http://www.joann.com/joann/catalog.j...RODID=prd49524