Using Coffee to Age Paint
When looking for a solution to subtly age harsh white paint, I decided to brew up a strong cup of coffee to brush over it. I let it sit for about 20 minutes, then wiped off any large puddles. It was the perfect way to give a slight darker tint in places. Plus it's non-toxic and rather aromatic!
I use the grounds right out of my coffee maker and just rub them into the scratch.
To cover a larger area, leave them in the filter, fold up the end so they won't fall out everywhere, then just rub it all over the area. You may need to moisten it with warm water.
For both methods, let sit for about 10 minutes (spot test it to get the color you want), then ...»