This is how to make some very small clay sonic screw drivers. All you really need is clay of many colors, although the main color is gray. I don't have many pics of the process But they are pretty self-explanatory. Its mostly making small cylinders of the body color and then adding the details.
Some tips: Don't worry too much about detail, as long as the main parts are there, it will look fine. take a break if those little bits of clay get tedious slow and steady wins the race! look at lots of pictures of different angles
I hope this instructable helps and please post pics of your own in the comments below. Thanks!