Can you use a regular blender over a coffe grinder? What type of materials can you make dubbing out of? Would regular acrylic yarn work? I just bought a dubbing dispenser by Wapsi (Crawdad); I would like to get pretty near this texture. What types of yarn can you use? Anyone out there making there own -- if so, does it take long? What are the benefits of grinding the materials compared to a wet blend. Your help is appreciated. Thanks.