Here's a humourous one: http://ockeroid.deviantart.com/art/Santa-Shrugged-150330205 And some character sketches: http://nezumipickle.deviantart.com/art/Atlas-Shrugged-sketches-92766619 There's a very recent dA group dedicated to art inspired but Ayn Rand, but nothing there yet. Might be worth watching: http://aynrandart.deviantart.com/