I've noticed a series of sticking plasters stuck to the footpath in random places around town and the country. I doubt they're related, and suspect they have fallen off the blistered heels of sandel wearers, but maybe - just maybe - they're part of a symbolic project to heal the world.
In a similar kind of vein, there's a series of small mirror sections stuck to the pavement near the Prime Minister's residence. They seem to form a trail of sorts that runs for 30 or 40 metres before disappearing. An invitation to reflect as you walk past the PM's house??
I think I prefer the sticking plasters.