Well there are shapeways creators https://www.shapeways.com/creator/ and there are personal co-creators. When you create your own co-creator you specify up to 3 fields where buyers can specify what ever you wish them to specify. An example would be a ring where the buyer could specify the size of the ring.
Who comes up with these terms; especially when there is the possibility for ambiguity? Why not '"Bespoke Options"?
I agree - Co-creator is often used differently to mean something like a co-designer. People specifying simple options on an otherwise pre-designed piece don't seem to fall into that category.
yes... co-creator can take many roles at the same time actually, right, however, he/she creates value in those roles, also co-design ?