I do love wool. But it is usually outside my price range. Acrylic isn't (quiet in the peanut gallery, please). I am not a yarn snob, I realise that certain yarns have certain purposes. Take this "heather tweedy" acrylic stuff, for example. It will make an excellent octopus-inspired monster. It's washable, durable and cheap. That white (acrylic) stuff will be for sewing on some details and features. The green stuff is 100% cotton and I think it shall be destined for this little project during study week. Don't hate the knitter, hate the cheap yarn!