On Mon, 29 Jun 2009 06:44:06 -0700 (PDT), FlaBill
wrote:

I have a need to make a hole in the center of plastic sunglasses.
Drills or hole saws don't seem to work.
What would you suggest?
Bill

Without knowing exactly how you are trying and exactly what
you want, it is difficult to offer suggestions.

How big of a hole? Are you drilling slow or fast RPM? Are
you using little or a lot of pressure? In what way does it not seem
to work? What tool are you using? Are you holding the object and
tool securely (like a clamped part while using a drill press?