I'm all outta ideas!
Seriously, back when everything was colorful, and the products had swoops and curves and stuff, it was fun - and kinda easy - to go off on a bunch of "what if?" ideas. You almost couldn't get too wild or "out there".
These days (and this is no slam or complaint, mind you), their stuff is distilled down to such basic, clean shapes and designs, I wouldn't know what to do. You'd almost have to do a complete 180 and introduce a bunch of angles or bevels, unnecessary curves, etc., which, in comparison to their current lineup, would look kinda tacky and gross.
I wouldn't know where to begin..."okay, here's a white square. I moved the USB ports over a half-inch!" *yawn*