I needed a new handle to prevent the wasteful expense of buying a new cooler for summer.

And... a contest was on for such things.

So... I made a new handle.  It took about an hour, and most of that was me being anal about the details of hand ridges.  This cooler handle is now custom fit to my hand.  :)

If you have a programmer's mindset, and can think in 3D: OpenSCAD is what you have been waiting for.