Apple has a long history with with computer mice. They pioneered one of the first commercially available with the Lisa Mouse and helped make it mainstream when it shipped with the Macintosh 128K.
Apple has also been known to make good looking mice at the expense of ergonomics - like the infamous puck mouse that shipped with the first iMacs.
25 years after they shipped their first mouse, Steve Jobs introduced the wireless Magic Mouse at a keynote in 2009. And it's a work of art - a translucent white plastic top and curving aluminum bottom, perfectly minimal and symmetrical. And it swaps a fingerwheel for a full multi-touch surface, making it super powerful.
A lot of people like using it. Many, like your designer writing this, find it unbearable and have switched to more ergonomic mice. It's narrow and the grip is awkward with the the sharp side edges inward curving aluminum.
Wanting to use the mouse again for the multi-touch abilities, we iterated and 3D printed over a hundred different geometries to get something that made the mouse universally comfortable.
And as a small little side project, we couldn't be happier with the way MagicGrips turned out. And hope you do to.