Don't do it
I cut an Ibanez Jem handle into a Washburn Status once (Used a real Jem DY777 for the template),then decided to refinish it in flourecent Yellow and Black tigerstripe,hiding the pick ups and controls in the black.As mentioned above,it's a pain in the ass to sand back flat,but when finished,it looked stunning...........................................
Then I sold it in the shop I worked at,the new owner used it onstage!........Oooops.It shone like the sun under U.V. lights and blinded everyone there