I spent the past two nights cleaning and restoring a vintage, original "Rock 'Em Sock 'Em Robots" by Marx. It was among my late uncle's items, and had been in a storage building for ten years. Unfortunately, it wasn't even protected very well, it sat at the top of a box, uncovered, and had accumulated years of grime. To my amazement, I discovered it was not only intact, but working, so I set out to restore it to its original luster!
I've cleaned up a lot of old toys in my time, but this was one of the worst! When a can of compressed air wouldn't even budge the filth, I ended up using an old toothbrush, and innumerable paper towels and cotton swabs. The photo above shows a "before and after" shot of the progress.
But the finished results were worth it! And, it looks pretty nice sitting on top of one of my bookcases!