Okay guys, forgive me for bringing up a non-PCE item in this thread, but I didn't want to make a whole separate topic just for this one thing...
So I have this Recca pirate famicom cart.  This is what color it's supposed to be:

That's the back of the cartridge.  Other than a few smudges here and there, it's in fair shape.  Now, here's the front:

Ugly, huh?  I haven't the slightest idea how to disassemble this cartridge (no screws :/ ) and if I did, I wouldn't know how to do the whole "retrobrite" thing without harming the labels.  Any suggestions?