Here's a very nice model of Einstein based on the mesh from http://www.thingiverse.com/thing:999442. I just made it easier to 3d print by fixing a few issues, decimating, reorienting and flattening the base.
It prints in about 9 hours with support. I used 0.1mm layer with 3 perimeters and 20% infill (fast honeycomb). For support, use 5% infill at 4mm and 54 degrees automatic.
You can buy this already printed here.