I saw this:
My thoughts to improve the above device:
1) I would take the desired (sacrificial) mouse and put a lump of clay on it. Mold the clay around the mouse, then grip the clay so there is an imprint of you.
2) digitize the clay piece (I figure this would be perfect to use a Microsoft Kinect for - it doesn't need much detail, just a few curves)
3) Clean up the digitization
4) Print the new grip and modify to accommodate the switches (and maybe the wheel?)
5) Rubberize the grip for comfort and add the switches.
I realize it might be easier for some to modify the grip to accommodate the switches/wheel BEFORE it's printed, but I've built plastic models for years and it seems easier when I think about it to do the mods with all the hardware in hand.
Any thoughts?
Danny