Hah, I had the exact same thought. White just doesn't match the aesthetics of the beast. I also don't like the no keyring hole issue. I know that they have the ball mount for your key ring, but it just seems too flimsy to me. I'm just not accustomed to having a watercraft/snowmobile key for a street bike. ;-)
I was thinking about trying a couple of different options on mine:
1. The whole back end of the key (opposite the claw) could be shoved into some heavy-duty heat-shrink tubing (black or whatever color you prefer). Apply a little heat (not too much) and voila... you have a ruggedized black key. The end of the heat-shrink can be cut to your desired length, heated up a bit and then flattened out. Punch a hole in the end of the flat part for your key fob, short lanyard, or whatever else suits your fancy.
2. Wrap the "neck" of the key with some thin, high-strength cordage like Lash-It or Zing-It (Dyneema, Amsteel, etc) to create your own lanyard or whatever to give more girth and purchase to the plastic.
In either of those cases, the lanyard, key fob, or keyring option would need to be low profile and not get snagged by your leg or flap around in the breeze. Both of those options are also reversible if you change your mind.
I'm used to having closed leather fobs on all of my bikes to bind multiple keys together and to keep them from scratching the triple-tree. Ryker owners that opt for the saddlebag/pannier case will also have an extra key to manage... no easy way to keep them together with the current key design.
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QM