Dr Gaylon Murphy, a cardiovascular surgeon from Aliso Viejo, and Steve Zingali, an engineer in Mission Viejo, built the fleet of carbon fibre-reinforced foam flying saucers in their garages.

• 神秘飞碟是用无线电操纵的模型，那些夜晚出现的飞行器不仅是为了吓唬人们，也是为了将他们销售出去。