Huge QR code outside of 8th floor bathrooms.

When scanned from a distance, message urging viewer to come closer appears and introduces instructions.

Giant QR code is a collage made up of smaller QR codes. 

The objective is to find the "star" (or some other object, perhaps a animated .gif of a dancing monkey?), kind of like Where's Waldo. When the star is found, printer prints out cool mini poster (or something). Fails say "try again, hot, cold, or some facts related to graphic design"?

Add code to web page that activates printer. Prints can be black toner on cool, fluorescent paper. Prints can be mini posters? designed paper airplanes? cool graphic design origami?