outer

Top of my hands are getting a little cold and wind blown. I saw some larger handguards on someone's bike and had a think. I cut some rubber ( wagon inner tube) and shaped it to look good then squeezed between inner and outer of the handguards. It looked rather good so I loosened the nuts...

Does anybody know of engineering firms that make wavey discs. I know of Braking and Gaffer but dont really want to pay their prices. was wondering if its possible to keep your own rotors and just get some wavey outer discs fit to them?