clipped from: weburbanist.com   

More Unusual Art from Everyday Materials: 16 Post-It Note Pranks, Sculptures and Murals

Bright Vibrant Wall Post It Noted
wall of notes
Donkey Kong Post It Note Art 2
a classic video game
Post It Note To Do List Mural
passers by were encouraged to contribute to the wall by writing their to-do lists
Post It Covered Office Prank
smothering an office with sticky notes