This is a quick post - sometimes you catch the shop after they have cut different colors. The layers fall to the floor under the table saw - it's random and cool. Enjoy. Looks like a dessert!
Or the simplicity of cutting 1 color of plexiglass - in this case 2793 red. When you are cutting plexiglas, it leaves a pile of chips - not dust.
They drop to the floor from the table saw, and scatter like a snowdrift from the table router.