unfortunately there is no way (that i have seen or heard of) to separate the clear from the black. I believe it's a two part injection molding. Basically the black is molded into the clear acrylic. With the regards to the back cover i'm not sure.
2.4gHz 15" MacBook Pro, 1.66gHz Core Duo Mac Mini, 2.5gHz G5 QUAD, 733mHz Quicksilver, 450mHz G4 Cube, 700mHz G3 iBook, 350mHz Sawtooth G4, 350mHz Revs. A and B B&W G3, 16mHz Powerbook 100, 8mHz Macitosh Classic.