I like the idea. It took a moment until I could see the difference between the gray and the black dots... maybe find a way to make that clearer. Also, I would generate a pdf file and send it, if someone signs up with email.
Cheers
@maria_brm yes it's possible, after generating your Momento's you have a box to put your email and receive your Momento's. we are working on generating a PDF and Jpeg that you can download directly
Augmented Reality 2021