Adjustable band with mermaid tail and security chain.
This cube prism is an optical component called a Retroreflector. What does it do??? It bounces laser beams directly back to their source with zero scattering... Retroreflector technology has been applied to reflective features on sneakers, clothing, and road signs.
This prism was either removed from a prototype assembly or it did not conform to its intended optical specifications... allowing it to be repurposed for a new life as an EVIE SKI glowski!