Landmines

On Sunday 1st April artist and activist Will St. Leger placed 100 fake 'landmines' made from stenciled metal plates in park around Dublin, Ireland.
Will St. Leger: "The reason for doing this was to get people asking themselves "what if the world I walked in was littered with landmines?"
By planting the fake landmines Will wants to highlight the lethal threat they pose to millions of people in 80 countries every day. " The only time that people really think about things is if they encounter them in their daily lives."
A sticker on the back of the devices provides information on landmines.
"They're nearly all gone now, the Police took away most of them when a tourist called the emergency number to report 'Landmines'. Afterwards, I wondered who the people of Laos, Cambodia and Iraq gonna call when they step on real landmine?"

Will St. Leger website

In a similar campaign, made by Rapp Collins Singapore for Clear Path International, frisbees that look like landmines had been distributed all over the city of Singapore by volunteers.
When someone picked one up a frisbee, a message at the bottom told that picking up a landmine is as easy as picking up a frisbee but with devastating results.