Lifesized Companion Cube pieces
Free     Thingiverse     Alpha-Lyr

Life-sized Companion Cube pieces

You will need to build a 14 cubed box to place the pieces on There are 2 heart pieces one designed to have resin poured into itif you are putting a light inside it or you can just print the heart separately ...

similar models —

Life-sized Companion Cube pieces alternatives
Puzzle Cube
Amanda Ostrem
LifeSize LEGO Stud
BricklandDesigns