After experimenting with the shaders in Keyshot, I found the perfect models for the "plastic" preset: LEGO models. :D
This model was made by building it brick-by-brick in LEGO Digital Designer by following the instructions (in PDF format), then saving it as an ldr model, then loading the ldr model into LeoCAD, then exporting it as an obj file, and then importing it into Keyshot.
I then used the "Iceland" environment (my favorite).
Takes me back to my childhood. My son built this one not long ago.