I always have a need for small, randomly shaped pieces of metal for various projects. Is there some company that supplies things like this? What about when I need some weirdly-sized bushing, and the local HW store doesn’t carry it?
Where can I find such a magical site?
You could try http://www.smallparts.com/. They’ve got a lot of oddball parts like that.
And there’s the Great Hardware Store In The [del]Sky[/del] Internet, www.mcmaster.com. They probably won’t have some of the more esoteric things that Small Parts carries, but more pedestrian hardware and materials will be a bit cheaper.
I’ll note that if the shapes truly must be random, suppliers may be hard to find.
Nah, you just buy regular shapes and take a Dremel to them with your eyes closed. 
Should work, though the amorphousness (amorphicity?) may then extend to your fingers.
You people rock.