If evolution were organized into a socio-political entity (such as a registered religion), then these Darwin walking Jesus Fish t-shirts would be the fashionable garb for its tribe members.
That said, if you like to poke a little fun at pop culture, then this Darwin t-shirt is for you. Show the world where you 'stand' on the issues of Creationism
Also check this design out in a
Darwin walking fish Hoodie here.