A chess board hinged box.
I printed the box and squares in PETG, and the hinge pins in nylon (Taulman Bridge). To create the box, I printed the two halves of the box and two hinge pins (four objects). Each half of the box is printed as a single multi-material object consisting of the box plus the black and white squares.
The chess pieces show in the pictures are from https://www.thingiverse.com/thing:34017.