Shave it all off for the full nude nut, pink crash helmet look.
Wear one of those bandana head scarf things (not sure it works but been recommended before) and one was supplied with my new crash helmet.
Keep a bottle of water with you (or use pub, office, service station restroom), wet your hands and rub it through your short hair to wet it. it will be dry agin in a few seconds and back to normal.