The question asks about "stain using black walnut leaves". It is not the leaves, it is the hulls of the nut that contain the staining substance. Note that the recipe below is for a dye for baskets. I suspect that the dye prepared with minimal water would be most suitable for staining skin.
From http://basketmakers.com/topics/ht/htwalnutdye.htm:
How to Make Basket Dye From Walnut Hulls
By Susi Nuss
Walnut hulls can be used in this simple nature craft to create a dye for coloring your baskets a warm brown. This dye can be used on reed baskets and some types of woodsplint baskets. Follow these simple instructions.
Difficulty Level: Average Time Required: 30 minutes
Here's How:
Tips:
The colour of a walnut floor will actually depend on the stain which used on it. Some ways to describe the colour of a walnut floor with different stains would be light brown, medium brown, chocolate or coffee coloured.
It depends on the specific shades of black and brown stains you are working with. To achieve a desired dark brown color, you would need to experiment with different ratios. Start by adding a small amount of brown stain to a small portion of the black stain and mix well. Adjust the ratio by adding more brown stain if it is not dark enough, or more black stain if it is too dark. Once you achieve the desired shade, use the same ratio to mix the remaining 5 gallons of black stain.
Wash with soap and water
An ounce of English walnut nutmeat contains 4.33 grams of protein.An ounce of black walnut nutmeats is 6.82 grams of protein.Black walnuts also have nicer flavor, but it's hard to separate nutmeats from shell, and it's nearly impossible to get rid of the stain from handling unhusked black walnuts.
wd 40 is a miracle worker it willl work
Get walnuts and mash them up with liquid varnish and then paint
You can't, it is a tissue stain. However, as your skin replaces itself you will find that in time the stain disappears. In about a week you will be fine.
depending on the color and how long it stays on there and what color your car is,if its white ohh yean if its black you probably woudnt ntice,but doesnt mean it didnt stain it.i got a white truck and leaves and pollen stain it if it sits to long.
I would remove the stain from the entire piece (leg or top) and then carefully re-stain it properly.
stock is standard american walnut, no stain.
1st boil 2 cups of water then put some assam leafs then boil it till its black /brown then take it in cup and add some after shave in it at least half the normal size bottle and apply it on the stain
Try to rub a walnut into it or if that does work get an old cloth and place it on the table and put an iron over the cloth then the stain should go away!