I learned to create this Origami Pouch following a tutorial by G.I. Kerr (https://youtu.be/ZRedofT9Dmw).
This is a great no sew, no clue, no cut one sheet wonder embellishment to add to your junk journals, handmade journals, planners and notebooks. It not only looks great and can be made with pretty much any size paper, this is an easy DIY that is functional for storing stickers, ephemera and other small pieces.