By popular demand I have spent time trying to locate Dog Tag cutters with no luck as yet. What I have managed to find is a Dog Tag template which covers a range of sizes.
Roll out your clay to the desired thickness and lay the template over the top. Then using your needle tool run around the inside of the template to cut out the shape. Any drag marks can be sanded off in the dry clay stage.
For an ultra neat finish and less sanding try our Ultra Clay Pick which cuts through wet clay like a laser.
A good value product for the amount of different sizes that can be achieved from one template.