Spoil Board Tiles
A spoil board is sacrificial material that’s used underneath the material you want to cut on a CNC machine. This ensures a better through cut and is usually MDF. I’ve noticed that when the spoil boards are all used up at ITP, some really amazing patterns are formed.
I cut a bunch of them into tiles, lit, and framed them. They let me hang them over the CNC in the shop. I like how they turned out.