This is so cool, i found this on pinterest and i forgot what i searched but it's probably easy to find. When i found this i was so excited because i love, love, love infinity scarfs and it's so easy! It's called arm knitting and to make a whole scarf it only takes about 30 minutes. The best part is all you need to do this is your arm and yarn of any colour! Now i haven't actually done this so i have no notes or tips for you except maybe use thick yarn, but my friend did it and she said it was very easy and turned out great! Try this out and comment any tips or notes you would add to this but i can't wait to try it!