Snowflake science.

Guiding light inside transparent fibres underpins optical communication technology. Using the same physical principles, Snowflake guides light in a hard-coated acrylic plate from 21 high-brightness LEDs mounted in an aluminium base.
The light is scattered from the holes in the plate, making them glow like illuminated snowflakes. Thanks to the line of high-intensity LEDs, all 159 snowflakes glow equally brightly.