Crassula ovata 'Hobbit' in 5 cm pot

Named the Horn Tree Crassula or sometimes referred to as the Gollum Jade or Hobbits Fingers.  Native to South Africa and related to the Crassula Money plant.  The leaves of this unusual plant can only be described as gnarly, hollow, hobbit fingers.  

 Thriving on neglect, this plant will be quite happy if  left on a shelf in bright, indirect light.  As long as you allow the soil to completely dry out between watering and the roots are never sitting in water you are unlikely to have any bother with this plant.