I was thinking of trying a thermal pigment to restore a G1 Euro Nurse pony (symbols like the MM ponies) whose symbols are shot, but am nervous about whether it will work on a pony. I realize I should probably try it on a less expensive pony, like one of the Magic Message ones first, but the pigment is pricey and I am wondering if it would be even be worth it to experiment. Has anyone tried mixing thermally-sensitive pigments in a binder that will work on ponies? Would there be interest in restoring these ponies if the technique works?