Australian artist Chris Poole has DIYed a different kind of laser graffiti device, compared to Graffiti Research Lab’s, as reported by Popular Science.

How it Works

BRIGHTNESS: The laser uses about 60 milliwatts, which can project an image up to 100 feet away, but Poole could easily substitute a laser with a range of as much as 400 feet.

FOCUS: By moving the salvaged camera lens—the last part that the laser shines through—forward or back, Poole can easily adjust the focus of the projected picture.

PORTABILITY: Poole can rejigger the parts to fit into a small case. The light bounces between a set of mirrors, then through the slide, a camera lens, and a hole cut into one side. He hasn’t used it much, however, since he’s been told it looks like a suitcase bomb.