Why have an old ID bracelet with his name on it when you can make this and tell the world what you really call him? It might be embarrassing when he's in the locker room and they guys find out his real name is "Pookie".
I used a piece of copper roof flashing, cut it in a small strip and embossed his name with some steel alphabet stamps. Clip off the points and file them. Use a black sharpie in the grooves of the letters to enhance them then take a piece of sandpaper, steel wool or scrubby pad to buff off the excess black.
If I was a good girl I would have drilled out some small holes on the end, but I was too lazy so I just used a nail and hammer. Make the holes big enough for the stems of those split paper brads. Gently bend the copper to fit around the arc of the wrist.
Take some thicker leather - maybe an old belt, and transfer the holes from the copper to the leather with a sharp pen. Use your drill or the same nail to make holes. Thread the brads though the copper and then through the leather. Clip off the points (if needed), spread the stems then pound them to set them.