Fully Functioning Spray Can Diversion Safe: keep your valuables protected

Step 4 Adding a bottom inside the can

Cut out a few circles of cardboard that will fit snugly into the can. Use sand paper to make the cardboard rougher. Then, glue the circles together in a stack. Glue the stack on bottom of the bottle. Finally glue and/or rubber band a small circle of plastic (such as from a bread baggie) over the cardboard, to keep it dry. This new bottom will be where the liquid gets sucked up from. It could potentially also function as the seal, but this is much harder to achieve than the method of simply placing your seal at the very bottom.