After working on Printing Presses for 28 years I've had to wear off ink colors many times. Try some WD-40, or lighter fluid. Sometimes WD-40 will cut thru stuff that heavy solvents wont.
Don't feel too bad. We use large bottles of Superglue at work. I had a loose piece of rubber on my work shoe. I decided to give it a little dab of glue and it would be good as new. The rubber stuck really good. And so did the bottom of my foot

. Seem there was a small hole all the way to the intereior of the shoe. I just snatched the thing off. Whats a little foot skin. Could have been worse. Lesson learned.
