There was talk of people getting the mars cover (blue) from a toy store or equivelent iirc. I thought it was on the rgp group. Though it has been sometime.
Most of mine are cracked, or warped. I'm looking for any the only ones I can fine are the slingshots, the building at the top and the Helicopter. But I would like to fine what ever I can. I also want the top blue beacon plastic.