To make a homemade vape, you’ll need PVC pipe, a bottle cap, a 3.7V battery, wire, cardboard, and glue. Cut the pipe to fit the battery, seal the ends with cardboard, and place the battery in between. Create a coil with wire, place it at the top of the pipe, and wrap a wick around it soaked in e-liquid. Glue a bottle cap to the top as the inhalation point. Connect the wires to the battery to heat the coil and vaporize the e-juice when you inhale