slingbow slingshot bow Shooting Arrows from a Slingshot crossbow homemade PVC pipe

slingbow slingshot bow Shooting Arrows from a Slingshot crossbow homemade PVC pipe bill of materials： pvc pipe O.D 25mm 10cm 2 cross pipe I.D 25mm 1 PVCwye I.D 25mm 2 equal tee I.D 25mm 2 sandpaper 180 1 PVC TAPE 1 Metallic Paint I.D 25mm 1 plug I.D 25mm 4 4cmpulley 2 reducing coupling I.D 25mm-32mm 1 KEVLAR wire 50cm rubber tube 60100 25cm heat shrink tubing 2mm 10cm