The reason I needed this was for a display I am working on... an exact copy of the TK bucket interior as shown in the first photo. It's an unusual shape (pic 2) which probably hasn't been made in years. I ordered a "replica" from a seller on FB which looked to be fairly close and somewhat thick(ish) (pic 3).
This is what I received.
It appears to be "molded" in one piece, but is definitely a fan-made sculpt using thin craft (EVA) foam. Although very flexible, the details are way too rough looking (first pic below) and at 5mm thick way too thin (second pic below) to use for this project.
Still on the hunt if anyone knows a source.