I was kidding mostly but while travelling (no letters where I was staying) I did recently make, out of basically waste paper, an origami gift card holder I was proud of :) it opens up in the back and you can slide out the card. No tape, no glue. I can look for the website with instructions if you’re interested

I’m exclusively on Pinterest 100hours/week. (I forgot to close the tab with the image search for cool origami)