I wanted to clearly communicate my message of sustainability, but show it in a way that would challenge the audience to think about the over riding issue of the planet. I came up with two key signifiers which I think will help me. One being the planet, as this is what sustainability is all about, and the other being electricity, or lightening bolts to signify electricity. Below are a few variations of what I came up with. I think they would communicate the desired messages well and the audience would instantly know what the shoe did.