Let's say you've just gotten a pre-loved pony whether it was from Ebay, a yardsale or a thrift store. She looks pretty awesome for something used. The hair is tangled but that is not a problem. Other than some surface dirt she's perfect! What a score! You start to clean the pony's body and while scrubbing or wiping the pony down you encounter a stubborn spot. What you thought was dirt is actually some weird mark! She has a few now that you really give the pony a good once-over after cleaning off the initial surface dirt. You bust out the Magic Eraser and even carefully try acetone to remove those pesky spots but with no success. They aren't very noticeable and don't detract from the overall look of the pony but now that you know they are there it really bugs you.
Personally what do you guys do in situations like this? Do you resort to sunfading? Ignore them? Paint over them? Ditch her for that's actually mint? Make a bait out of her?