How do you get sharpie off rubber?

Try a Mr. Clean Magic Eraser, those supposedly can get and smudges or stains of of anything. If that doesn't work, try sandpaper. It almost always gets things off, you just might have to deal with scuffed shoes though.

Oh and you can try gently rubbing nail polish remover on converse to get the sharpie off of it (if you need to get sharpie off of converse!!!)... it worked for me!!!!!