Right now, Knit Picks is having a special where you can purchase a sampling of their cotton yarns to fool around with for under $20.00. Each comes with enough yarn for four or five small projects.
Unfortunately,I can't send you the link, but if you go to
www.knitpicks.com I think you'll see the offering.
Cotton yarns and I don't get along, but theirs are a bit better quality, IMHO. My friend, who is allergic to wool, loves them, and they are nice to the touch.