origami.

[sjoecool1991]

Personally, it is my favorite hobby.
I sometimes spend upwards of 2 hours on one model.
As of now, I am still working on this crazy model, in which I was only given the crease pattern, and no detailed instructions, and have been working on it for 2 hours already.
Also, I am working on a 900 module sphere.



PS: I believe this is the most complicated model ever designed. And no, I cannot fold it, partly because it has no diagrams or crease patterns available.