I haven't tried stripping any of these but suspect they may not be normal "tampo" decorations. Mattel has an alternative process... graphic fusion or is it fusion graphics??? that they use on stuff like the Cop and Fire Rods. To the best of my knowledge nobody ever came up with a chemical way to remove them. I only had success with mechanical removal.... rubbing compound and a lot of care. The other possibility is that they used more solvent resistant ink. I know that some of the metallic colors are very difficult to remove with solvent. (I posted this info earlier, but it apparently disappeaared). gunslinger gary wilcox