Just heard about these unbelieveably cool typographic mobiles. Thanks moo.com for the tip!
They were created by the design office Ebon Heath as gallery pieces, and according to their explanation they are lyrics from songs, poems, and other passages of text "hand cut from tyvec or bristol". I can only assume "hand cut "means letter by letter with some kind of cutting dies. Cutting these by hand with scissors would likely render the human hand unsuable for the rest of one's life! Either that or certainly bring on early arthritis! Impressive.