there probably is something about putting ink in a paint pen but i really cant be bothered to go through this whole forum to find one answer, but i was wondering if you could or not? when i mean ink i mean the ink thatd youd put in a mop and when i mean a paint pen i mean the 15 - 30 mm pens that typically have acrylic in them, like montana, mtn and liquidex for example. and was wondering if anyone had any pictures of videos of the results, thanks