Why do Shmooish men wear Propeller Beanies?

The Propeller Beanies worn by Shmooish males represents Helicopters. According to Shmoodelism, when one is in The Great God Mota’s presence, he must keep his head covered. Since The Great God Mota is omnipresent, one is always in The Great God Mota’s presence and, for that reason, must always keep his head covered.