That biker must've been from one of the devil-worshipping motorcycle clubs, because this bandana is printed with Hell's angles.
(In-game plural: pentagram bandanas)
|TOP 10 pentagram bandana collections|
6. Pastahead - 13 | 7. Poncho the Sane - 8 | 8. Lord Stefano - 8 | 9. Kreegah - 4 | 10. Pumpkinheadme - 2
Collection data courtesy of ePeterso2 and Jicken Wings