I found reference to this hat pattern while reading posts on crochetville. I checked it out and am really impressed at how easy it seems. I think I'm going to try it as soon as I finish the pair of slippers I'm making. I looked up the yarn she used and it is a medium worsted weight yarn made by Lion Brand Yarns. You could probably make one of these hats using some inexpensive acrylic ww yarn you have in your stash.