I have what seems to be a one-off TE R2 art piece. There was a slight defect on the back from manufacturing, causing ripples in the art layer underneath (The top is unaltered and perfectly smooth). This turned the logo into a 3D, highly reflective, almost holographic image.
It looks awesome in person and I previously thought it was just how they were made, that is until I bought another R2 TE and saw how “flat” the logo looked compared to this one. This has never been used.** $15**