Hello and here are my instructions on how to make "Haunted Coins". If you look closely than you can see a skull on those Dimes.
Step 1: The Gathering of Supplies
You will need a piece of Fine Sandpaper and a coin ( I use an American Dime in this demonstration).
Step 2: Start the Sanding
Start sanding the heads side of your coin until you are satisfied with how your skull looks. Now your finished!
Step 3: Additional Fun
If you want you can add a Spinal Cord.
Note: Be careful when adding a Spinal Cord as you can mess up your whole skull.