The handcuffs conects two things (the hands) but in a bad way because they restrict your movement. In the same way TTIP will restrict our right. The campaign could be developed using printed media and as well as using real handcuff to drive the message against TTIP for exampe, as giveaways with information brochures or used in demonstrations to show things that will change if the TTIP is approved (ie our rights vs. big companies rights)
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Bus stop mock-up: https://www.behance.net/gallery/14105001/Free-Photoshop-mockups; Greenpece logo: https://en.wikipedia.org/wiki/Greenpeace#/media/File:Greenpeace_logo.svg; Typography: http://geomanist.com/