Then there are big muthafudgin' snakes. They do a great job of wrapping around your neck, but they're more likely to close your airway than keep you warm.
My friends, I have your solution. I have created a furry, snake-like artificial Tribble that can be posed around your neck during cold weather... or whenever you have the urge to wrap a long, furry inanimate object around your neck.
Behold... the furry neck scarf! These critters are 36" long and 4" wide, light-weight and available in many colors. This particular individual is sporting a Margaritaville-lime shade. They can also be done in multiple hues, or longer lengths (for the cost of more furry yarn guts).