I just had a ballpoint pen leak all over my lovely, light-coloured office chair.
Tried to wipe it up, but there was no way an ordinary household wipe was any match for it.
So I went online and read that hairspray or nail polish remover might get it out. Tried hairspray, which removed about 80% of the stain very easily - the nail polish remover quickly got rid of the remaining 20%. I'll Urad the chair once it's dry. But really chuffed that it worked!
Strangely, the hairspray and the nail polish remover seemed to tackle different elements of the stain. The hairspray got rid of a lot of it and turned it from blue to pink - the nail polish remover got rid of the pink.