Wash your spoons in mild dish soap and cool water. Dry them with a soft towel. Not only does this remove dust and dirt, it can remove some tarnish and make your spoons shine.
Fold a clean towel in half and lay it on top of a sturdy counter or butcher block. Lay your spoon on top of the towel with the bowl facing down.
Rap the bowl of your spoon firmly but gently with a rubber mallet, flattening the bowl into a teardrop shape. Working too fast may cause ripples or splits in the bowl, so be patient.
Make a permanent marker dot on your spoon for each letter of the plant. For instance, if you want to mark your sage plant, you'll need four evenly spaced dots on the spoon.
Lay the spoon flat on your towel and place the stamp for the center letter on the corresponding dot. Tap the stamp sharply twice or three times to make a dent in the spoon. Starting in the center prevents warping.
Stamp all of the center letters first, working from the middle to the first and last letter of each word.
Color in your word with permanent marker. The ink helps the word stand out. Let the ink dry for an hour and shine up your spoon with steel wool. The wool will also remove extra ink, leaving it only in the stamps.