Recipe:
- Burn the corners off of one sheet of paper with a lighter. I used A4, but I’m sure US Letter works too.
- Crumple it some and then straighten it out.
- Make some black coffee, any temperature and pour it into something that can fit the paper laying flat
- Bathe the paper until properly stained (or to taste, I guess)
- Roast the paper on 100 degrees C for 30 minutes with the convector fan running
The result is a perfect “treasure map” for use as a D&D prop during tonight’s session with my kids.
But I am dull enough that watching wallpaper yellowing is close to extreme sports for me.