Stupid things and a complete waste of time, I slung mine, and now the BHT has got it on his bike. Tosser, can't see feck all now, and it's a waste of time cleaning it, 'cos all the crap get's behind it, all over the headlight glass which is impossible to clean properly.
How many people here, have actually broken the headlight on a motorbike before. I've broken one, about 15 years ago on my Ducati, hit a railway bridge at about 65mph in the snow. I'm not sure, but I don't think a piece of plastic would have helped much that night.
Headlight covers are like buying a hassleblad, and putting a two bob filter over the lens (ask a grown up!)