Amnesty International recently ran “Your word”, a print advertising campaign in which yellow speech bubbles are placed inside the trigger of a gun and inside a latch. “Your word to stop unlawful detentions”. “Your word to stop the killing”.
Credits
The Your Word campaign was developed at Grey Istanbul by creative directors Engin Kafadar and Ergin Binyıldız, art director/illustrator Tolga Özbakır, art director Burak Çınar, copywriter Damla Akçay, and account supervisor Ömer Üstündağ.
Looks like the War Child campaign done by John St last year.
http://ploughshares.ca/2012/11/war-child-launches-campaign-to-protect-childhood/