breyerhorselover1111:

I have experience in this, but you must be VERY CAREFUL. I bought a breyer with a ton of black marks (not sure if they were sharpie or not) on him, and the lady that I bought it from said to use rubbing alcohol to get it off. Well it worked! I used a Q-tip and gently wiped the lines all off - the catch- if you rub to hard it will take the paint off your horse model too. I have done this with a few of my horses to get random marks and smudges off, but again it must be done delicately or you will take the paint off too. just a little swipe, gently back and forth until its gone. then pat it dry with a rag or clean towel.

Good luck!