The BladeForums.com 2024 Traditional Knife is available! Price is $250 ea (shipped within CONUS).
Order here: https://www.bladeforums.com/help/2024-traditional/
You can darken it chemically with selenous acid and diluted copper chloride/copper carbonate. IF you can still find these. It's highly toxic stuff I got from my grandmother. A dip in there turns it matte black in like 1 second flat. Holds up extremely well too.
Onces it drys its safe as well.