One of my helmets is destined to have a Santa hat permanently affixed. I guess that would be a "winter helmet" although it's just for December.
The other helmets:
. The Night Helmet, with the helmet-mounted strong headlight and a rear flea blinkie.
. The Daily Helmet, HiVis yellow with black decorative graphics. Matches my HiVis attire.
. The Fashion Helmet, a simple light gray helmet that looks nice with my club jersey and other non-HiVis jerseys.