Vtg Delta Rocket Ray style bicycle fender light siren Acc Cruiser Banana Seat!Vtg Delta Rocket Ray style bicycle fender light siren Acc Cruiser Banana Seat! Just a cool old accessory!!! turn crank siren works sorry didnt try light. vintage Delta Rocket Ray style bicycle fender light siren, commonly found on 1950s and 1960s bicycles. Design: White plastic torpedo shaped body with a red rear lens. Purpose: Primarily functioned as a fender mounted headlight or tail light for vintage bicycles like Schwinn. Features: Some models