So is the UV mapping on e.g. your color chip what's termed a "planar" projection, in Hexagon, BB?

Or is it "cubic"?

Or something else?

I've been using the planar projection option on the Tardis wall prop I've been working on, and that seems to work pretty well with the various singles (e.g. the marbles) from your an Tom's  furniture sets.

Instead, making an unwrapped UV map, either manually, or using Photoshop's refactor UV maps option doesn't give me workable results (although I think these options would if I was instead painting a texture onto / for the model).

Cheers