Til Death Do Us Mark Black Marker
From Absit Omen Lexicon
A product of Weasley's Wizarding Wheezes, this indelible marker is very permanent. Otherwise effective cleaning magic will do nothing and neither will soap or other mundane cleaning products. It takes a great deal more prowess to remove its ink.
The marker is fat and round, with a big chisel tip. The cap screws on and off, instead of popping. It reeks.
- Figaro Sellaphix uses it on his egg. [1]
