I made these for my girlfriend whom works with the blind. They are very cheap and easy!

Step 1: Tools Needed

what you'll need:
a hammer
a small nail
a very fine tip pen or marker
a spacing template (I used an electronics board)
a blank charm
a mini keyring

Step 2: What to Punch

Find the letter or contaction you want to make.

use your template and put it over your charm. make sure you hold it still while drawing the letter backwards. (this is the backside.)

all you have to do is lunch the nail with the hammer on the dots and check your work by flipping the charm over.

put the charm on the keyring to put on your keys, a bracelet or necklace! enjoy!