Put the ID in an airtight plastic bag. Seal the bag.
Place the bag so the card is face-down in a pot of boiling water.
Remove after two to three minutes. This will have melted the adhesive holding the hologram on. While leaving it in until the hologram falls off entirely will work, boiling the ID for that long will likely fade the ink elsewhere.
Gently rub the hologram with a soft cloth. It should come off. If parts of it remain stuck, boil it for another minute then try again.