I have a non-working NES system and Original GameBoy. I hate to throw them away, so if anyone needs any parts from either one or both, just pay for shipping by PayPal, and they're yours!
NES - all that's really left is the thing that the cartridges slide into, and then get pushed down. The thing with the springs. See pic (down a few posts) if you're interested.
Original Game Boy - also broken, with battery cover.