Can Crushing for the fun of it.
My dad built this can crushing machine years ago, I think at one time it had a hopper on it. The thing is huge, and the recycle value of the cans is practically nothing. The squashed cans are starting to pile up and will probably attract ants and bees.
Still, there is something satisfying about crushing can after can, it makes a wonderful crunching noise, almost as good as the sound of breaking glass.