Don’t throw away your old calendars; the Fablab will be glad to pick them up! Among other things, they can be used to define shapes when cutting wood, or transformed into stencils, boxes, etc.
By all means drop them off at the Fab Lab or leave them with a supervisor (Patrick Gallais, François Lesaffre, Matthieu Meersdam, Simon Thomy, Fabien Verbrugghe).