I love different each utensil is. Some are more rustic looking than the others, adding to the antique look.
First step is to flatten the utensil out with a hammer or even a vice.
Here is what mine looked like all flattened. Next stamp your letters on the surface of the utensil. I used 1/8" size metal stamps, purchased from Harbor Freight. They are fairly inexpensive. Make sure you hammer the stamps on a hard surface (concrete). We used a concrete block. Do NOT use your kitchen counter or floor, the stamps will not get a deep enough indent if the surface is not hard enough underneath. It can be really hard to line those little letters up perfectly, so practice on a piece of silverware you do not mind giving to the cause. And if they are not perfect, that is okay, it adds to the rustic charm, don't you think?
Here is "Basil" stamped on a fork.
Here it is colored in with a sharpie marker.
Once you have stamped the letters, take a black sharpie and color over the indents really well.
Then take a baby wipe and wipe off the excess marker. The color should remain in the indentations from the stamp, but wipe right off the areas around the indentations.
See? Not perfect, but definitely better than the little paper tags that come with the plant, or the old school craft stick with the name written down the side.
Here are two comparing the one on the left which is colored in versus the one on the right which has not been colored in yet. Makes a difference.