Just print the photo, cut out the jaws with scissors,
If your serious to want to crack some nuts with that..hoho...
put it to the face again,
and then, merrily push it up and down
our Alfred-Biolek-Nutcracker is ready.
stick it to a board - glue should do - saw it out...
...or just borrow your grandpa's crutch.. and beat the nuts til they give up.