Sakura Pen-Touch 2.0mm Paint Marker

Sakura's liquid paint marker option for semi-permanent sighter. 

These markers are bit easier to remove than the solid paint markers from Sakura but they stay on better than Skafar's Wax especially in warm temperatures. You can remove Sakura markers with hand sanitizer or a Mr. Clean Magic Eraser. Don't get the eraser wet though. It works better when dry.