Hi
I find that a leather punch and a mallet works
quite well. The results are good enough that one
can still use them as reasonable Frisbees ( not
really balanced well ). The oven method really
destroys the aerodynamics. Shredding makes them
truly worthless.
Dwight
From: "John A. Dundas III"
<dundas(a)caltech.edu>
I admit, actually shredding the things would be satisfying, however,
---snip---