[Suicide Junkie]

The hardest part is cramming them into a 8x5 or so window.

Refer to the test pattern I made, (red & green boxy shape dots)
The red boxed area appears at the tip of the beam, while the green boxed area gets tiled to form the body.
Black pixels are not drawn, so if your tip is wider then the beam, you may find it appears to tile as well. Fill out the beam zone with almost-black to fix that.