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A Gundam sized 5 cm only.

The one of the right is a plastic, but the left one is made of chopsticks and toothpicks!

Believe it or not, the person who created it says he just "wanted to try making one":

Source: ‪割り箸とつまようじでガンダム作ってみた

 

Actually, his creations do not end with this. He has made other similar super tiny-sized figures and he introduces them in the video below, after getting huge positive feedback on the first video.

Source: 割り箸とつまようじのザクと、他にも色々作ってみた