About this 3D model

So now we have the good stuff. This one has:ArduinoHobbico Command Standard Servo CS-616xAA holder4xAA holder4-40 english unit screws and nut (these are what I use; should be easy enough to scale these to your own specs...)LEDsStandard DC MotorThe DC Motor can be had pretty cheaply:http://allelectronics.com/make-a-store/item/DCM-296/SMALL-DC-MOTOR-MABUCHI/1.htmlThe hobby servo's horns are not at all manifold but I decided to leave painstakingly affixing faces in between the horns and the shaft as an exercise to the reader. (You'd only need to do this if you wanted to print a servo replica anyway.)