It is an interactive business card holder by using arduino chip to control it. There will be a photoresistor sensor that sense the light change when approaching. When people's hand approaching "Happy Rabbit", it's ear and hand will move and LED inside will glow. It's a fun toy and a business card product as well. I made the rabbit by solidworks software, and 3D print of ABS material. Right now the mechanism is working but not very smoothly, so I had to take the arduino board outside the rabbit.