Quoted from TheLaw:Yeah. It's a foil that reflects light and it seems is impossible to reproduce for some reason. I think someone did and it was awfull etc
Twisted Pins tried to do a repro, but the initial batch turned out terrible (from what I have read). They were supposed to have another version, but that was a year or longer ago and it's been nothing but crickets from Twisted Pins. Here is the thread about it if interested:
https://pinside.com/pinball/forum/topic/announce-whitewater-foil-topper-decal-reproduction