Try hairspray! I had a blue pen and the ink went on my fingers. I went to push the stool in and it went on the stool. I tried Jif, bleach and alcohol, they all didn't work. When it came to hairspray, it came straight off with just one wipe down.
So if you have any leather that has been marked with ink, don't stop and think that it's a scar for life. Let me tell you that hairspray was the best product I ever used!
By Olivia from Bexley, NSW
Related:
Removing Ink from Leather