Permanent ink mistake? no worries, just use this trick!
Step 1: Needings:
A empty Edding 8400(Permanent CD/DVD/HD Marker)
A plastic surface(a plastic organizer box is perfect)
A filled(full) Edding 8400
Needlenose Pliers or normal pliers
use your needle nose pliers to squeeze out all the ink at the tip of the empty Edding 8400.
Start drawing with the full edding 8400. later, use the empty one to erase it. but it only works within a minute.
Watch the video to see it's not fake.