Here is a very simple project for beginners: a unisex scarf, sized for adults. This is designed to be a good length to wear Parisian style (when you fold the scarf in half lengthwise, place around neck and pull the loose ends through the centre and pull to tighten). If you would like a muffler length scarf, then you may add length, as indicated in the pattern.
This is inspired by the garter stitch scarf The Lonely Doll knits. (There are less stripes and it is not as long, to make it easier).