Mechnical Draw
On a clean page in your sketchbook, you are going to do a Mechanical drawing.
You are to take an object from nature (person, animal, tree, etc) and draw a contour line drawing of it.
Then you will use mechanical items to create the inside of the object you chose.
Make sure you look at your value scale often to ensure you include as many different values as possible.
The mechanical items you draw should look as realistic as possible