A ball-like modular origami by Mio Tsugawa. It’s made form 30 pieces, I recommend using normal paper since thicker would make it impossible to assemble.
There are many variations of this models based on the length of the module paper, I used a 2:1 ratio, but you can go from square to whatever you want, some variations can be seen on the authors website.
Paper to use
On this model I used 20 yellow modules and 10 green to make a green “stripe” on it, the modules I used were 9 by 4.5cm.