So I think I have found actual permanent markers. I wanted to make gorgeous fabric instead...but no....lol
So below are my experiments. Ignore the lovely underneath yellow wash, it was a paint experiment. SO with my chinese cheapie markers I tried the rubbing alcohol, then I upgraded to the local brew 'pisco'. The local equivalent of vodka only it is 40% alcohol. (so plenty % to make anything run if it was going to)
Yes, I imbibed the little leftover bit after it didn't work.
The local markers that are washable of course ran out so much it isn't worth the effort. So I am back to paints. sigh. OTOH I have some fantastic markers that hardly run no matter what and they will come in very handy for projects. Maybe I should go into business selling them as a fabulous new art Q product....
Now the question is, can I somehow use some of this hideous experiment in the current challenge?