Check this out, way to repair those vintage toys!
Plastimake!
Re: Plastimake!
Protoplast, Thermomorph, Fantastic Plastic, Multimorph, this stuff has tons of names. This is definately a must try! Thanks for sharing. Ordering now. 

Re: Plastimake!
Excellent stuff! Still need to get the hang of molding it, but loving it... 
