Colombian artist Miler Lagos' book sculpture called Pie de Amigo (Foot of Friend) is an artfully arranged arc of stacked architecture books. The kicker: he placed one pencil in each book so that, if removed, the piece will collapse.
A few rungs down on the social/artistic scale, but fascinating in their own way, are Tart Cards, used in London as advertising by sex workers and often traded by devotees, like Pokemon cards. Catherine Archer, the author of a book on them, works at the Birmingham Institute of Art & Design and has her doctorate in typography; hence her special interest in their typefaces. A 19th-century typeface, for example, appears on cards offering mock schoolgirl services while masseusses employ whimsical and feminine scripts. Domination cards use "stern words set in Gothic letters."