If you're going to talk æsthetics...

I like the speedymoto brand as they are Ducati-specific, and I dig the skateboard wheel look. Sometimes you see "ugly" things on bikes that get raced or stunted that you wouldn't see on show bikes (e.g. obnoxious sliders) and that makes them look more serious and keeps you humble. Same goes with cars.

But that's just my "nothing-looks-better-than-a-car-after-completing-a-24-hr-endurance-race" perspective!

Do it yourself...takes about 10 minutes.  Speedy frame sliders come with decent directions, but it is really straightforward.