https://www.thingiverse.com/thing:1892016
https://www.thingiverse.com/Desktop_Makes/designs

I modified this print to make assembly a little easier. This has two holes in all but the top cracker so you can thread string or line down one side of all the pieces and up through the other to hold them together. Then then pull both thread tails through the top cracker to make a hanging loop.

I also reduced the size of the Graham cracker so the marshmallow face is more visible.