Grizzly Bear - Two Weeks (Unofficial music video created by Gabe Askew)
Hand-made paper models? No. Computer generated. This awesome work is a personal project of Gabe Askew, who created this [unofficial] music video for the Grizzly Bear's song Two Weeks.
Done in 4 months in his free time, you can read more details of this production in this Gabe Askew interview.