I have a recent itching to do this:
http://www.ft86club.com/forums/showthread.php?t=71798
Replace all the silver trim and dash pieces with their black equivilants from Japan. Toyota offers all the parts in a flat black and can be obtained from most US dealers, while Subaru offers all the parts except the dash panel, door locks, and transmission buttons in a glossy painted black from the BRZ tS, but they would have to be imported at a higher price.