Desert Island yarns

Margene had a post this morning about choosing yarns to take with you to a desert island, and I couldn't stop spinning this around in my mind all day. I realized that I don't try very hard to keep up with the most current yarn brands, and would have a hard time narrowing down further than general categories into very specific brand/types, so thought instead about all the things I would need to make for myself on a desert island as well as the ones I want to make in the future. I actually thrive on a balance between fantasy and practicality, and even enjoyed thinking about making such items to beautify every day life on a desert isle as seating, floor covering, utensils, etc. Would it be possible to knit everything I needed? I thought about other materials besides the luxury yarns (just couldn't stop myself, I guess) and ruled out copper wire, but thought there might be a place for recycled colorful and pliant telephone wire and computer networking cabling... I am sure I went way off on a tangent from the original intention devised by her friend Julia, but it kept me entertained through about two hours of driving! Thanks, Margene and Julia.