I made this Bat Signal out of tin cans, thin EVA foam, and cardboard. I was able to find a light source for the signal by exposing the internal circuitry of an LED Head Lamp with the batteries still attached and placed inside the signal. I figured that instead of having to make the light source from scratch by installing an LED bulb inside and figuring out how to install batteries would only be a waste of time and effort. I finished making the signal by painting the entire signal in black acrylic paint with silver dry brushing finish.

I also decided to make interchangeable Bat symbols for the signal since all of them are not attached to the signal permanently.