Make your mouse more ergonomic

Logitech stopped making these mice YEARS ago, but I love the feel of them in my hand (I own five of em).

After a while the rubber begins to decompose, turning into that weird sticky/oily rubber.

Instead of just giving up on them, I tear off the weird sticky rubber, scratch up the plastic to give it something to adhere to, and put some sugru there and actually IMPROVE the feel of the mouse. The little ledge gives my thumb a nice place to grip.

Not just rescued from the dump, but upgraded! Pretty great.