8×10″ mechanical iris greetings card, incorporating a 5 blade iris mechanism with a 3.5″ aperture, made of reflective card stock.
Opening the aperture reveals your message.
Message can be easily replaced, and the card used again.
Available for purchase: https://www.etsy.com/ca/listing/660886955/mechanical-iris-greetings-card-8-x-10
You can also download the template here: https://www.etsy.com/ca/listing/660886955/mechanical-iris-greetings-card-8-x-10