Broken Heart Box
A box with a heart, which is also an action origami model. When things go wrong, the heart can be reshaped into a broken heart. The heart itself can be tessellated. In this case I call it Fragile Heart Tessellation (fragile because it can easily be broken).
The heart itself uses a 12×10 grid and the whole box a 16×16 grid.
Instructions for Broken Heart Tessellation (from which it is easy to derive folding the box as well) were published in IOIO 2017 book.