Melbourne's Shrine of Remembrance: The two eastern courtyards are for entry – the general public come through the north-east courtyard, a solemn entry space with the words ‘lest we forget’ inscribed in the red pigmented concrete walls.
Yellow Arrow - Participants place uniquely-coded Yellow Arrow stickers to draw attention to different locations and objects - a favorite view of the city, an odd fire hydrant, the local bar. By sending an SMS from a mobile phone to the Yellow Arrow number beginning with the arrow's unique code, Yellow Arrow authors connect a story to the location where they place their sticker.
The chain-link fences proposed for the hub of the Southside’s creative community are crafted in bicycle tire inner tubes, bamboo and slabs of concrete. Description from greendiary.com. I searched for this on bing.com/images