I'm clearly on a major metal stamping kick right now, but I've still got projects, so why stop now? This is a cute and unique way to label your plants, using old silverware that you could easily get from a thrift store.
Count out the letters in your word. Mine has six letters, so I marked six equally-spaced dots with permanent marker. These dots are to help you line up and space your letters properly when you begin stamping. Don't worry about ruining your spoon with permanent marker; we'll remove it in the last step.
Beginning with one of the middle letters, carefully place your stamp over the corresponding dot. Be sure that the letter is facing the proper direction, and then firmly whack the top of the stamp once with your rubber mallet or hammer. As you can see from the photo, I hit mine too hard, leaving a circular impression around the letters.