I haven't tried any of these but they seem simple enough. I would probably just do the one where you sand off around the edges. I don't know about adding that piece of plastic to make it raise higher up.
If you decide to do this tell keep us all informed. I may even try this this weekend.
"If you've got them by the balls their hearts and minds will follow."
Quote by- The Imortal John Wayne, the original BADASS!








