One of my tasks this week was to create some realistic-looking bacteria. This is what I came up with. I created a capsule with some mesh optimization and a VRayDisplacementMod modifier using a cellular procedural map. My material has a Diffuse map with a falloff and a Self-illumination map with a falloff and adjusted output levels to get that "overbright" look. The field of view and background effects are done in Photoshop.