What this one is
There's a particular kind of evening that calls for a project you can pick up and put down without losing your place, and this worm is exactly that. Each ring is its own small commitment, a handful of rounds in one color before you move to the next. It suits a maker who likes watching a spectrum build up gradually, and it makes a soft, silly companion for a kid's shelf or a gift that doesn't need wrapping paper to look cheerful.
Your hands spend most of this pattern doing plain single crochet in the round, with the real shaping saved for the head and tail sections where you increase and decrease. In between, you're changing color again and again, stuffing as you go so the worm stays even instead of lumpy at the end. Between the ring work, the eye placement, and a bit of embroidery for the face, you can expect somewhere around four to six hours total.