When it comes to LEGO and sorting ... to solve this by leveraging the difference between a headlight brick and a regular modified 1X1 with a stud on the side. Later, the same two coins reveal ...

For context, a standard LEGO brick is 20 LDUs wide, and a single plate is 8 LDUs tall. Intriguingly, through clever combinations of headlight bricks, jumper plates, and even rare Minifig neck ...