Hi Woodsy, Another restoration project taken care of recently was this 1950's Plas-Tex Aerocar from the States. I know this a good decade earlier than the usual space toys that you feature but I think it is worth a mention as it is a particularly fine piece of futuristic design and a very rare toy.
This came to me in heavily played with condition with a lot of scratches, chips, cracks and a broken wing held on by thirty year old sticky tape - all pictured above. I sanded most of the marks and tape residue out of the plastic and polished it up. I glued the wing back on with styrene cement. The end result is very displayable as shown below.
More to follow, Ferryman