It might be a more unusual rallying cry than you're used to (what do we want? T-shirts!) but it is genuine all the same. KamGi Chak and Kyle Finch, the founding members of clothing company Be Love are on the board of Common Peace: The Center for the Advancement of Nonviolence, which provides nonviolence workshops in Los Angeles.

All the company's shirts (which feature icons of peace including Gandhi and the Buddha) are guaranteed sweatshop-free and most are organic. There are styles for men, women and children and prices start from $30 - although Treehugger has a discount code.

Chak and Finch donate 10 percent of Be Love's profits to Common Peace and use their website as a forum for debate about nonviolence and peace.