In Colore Veritas - Well-known photo of a Japanese Navy pilot, said to be Hideo Oishi, tying a rising-sun ceremonial headband known as a “Hachimaki”. Note the handgun, most probably an imported
Japan Hachimaki Headband Martial Arts Sports KAMIKAZE Devine Wind, Made in Japan | eBay
Japanese Headband HACHIMAKI Bandana 'KANJI' KAMIKAZE Made in Japan | eBay