How to make double shot slingshot

Hello friends is video me maine double shotgun banane ke bare me bataya hai joki cycle tube rubber ka istemal kar ke banaya gaya hai. how to make double barrel shotgun. ghar pe banao double shotgun. parde vali pipe se gun. How to make gun at home. homemade gun देसी तोप | How to make calcium carbide cannon using pvc pipe घर पे बनाओ मोबाइल बैटरी से चलने वाला पंखा। How to make mobile battery rechargeable fan आलू से बनाओ बैटरी । Haw to make a potato battery बैटरी से जलाओ माच