I recently got a copy of Mi Wu’s new book “Duo Color Origami” and knew there were models I had to try:
![Mi Wi WTF](https://i0.wp.com/www.wonko.info/365origami/wp-content/uploads/1017MiWuwtf.jpg?resize=764%2C573)
Colour change is a tricky thing, designing to deliberately form patterns with the reverse side of the page is a real skill and Mi Wu seems to have mastered it, his book contains many unique and very challenging models.
![](https://i0.wp.com/www.wonko.info/365origami/wp-content/uploads/1017MiWuwtfScale.jpg?resize=764%2C573)
I like this, it is a badge, rounded corners, like an icon shape and clever reveal of the white “?” – precise folding needed, genius design.