3D prints, real packaging, and what happens after.
Real 3D printed characters and real packaging, photographed and then pushed somewhere they could not physically go. It is a test of how far a product shot can travel before it stops being believable, and whether that even matters.
Packaging is the discipline I trust most, so it is the one worth stress testing. The prints and the boxes are real. Everything after that is negotiable.
The same approach works for a client's actual product long before that product exists in a warehouse.