You could stick them in the ground in a garden and call them yard art. If you weave some material through them it could make a border for a garden. Maybe you could make a high tech looking "bouquet" with these and some wire and other metal things that look sorta like flowers, then stick them in a vase with broken Cd's in the bottom, like those fancy glass stones they sell for vases.
This is a great idea! I am off to the Salvation Army to buy mixer beaters!