Article: You'll find the "Insert" menu at the top of the screen. Mac users will see a menu of shapes appear on the right side of the screen. PC users will see a drop down menu of shapes. As you scroll through the available shapes, you'll see a small selection of pre-formatted 3D objects, including a cube, a cylinder ("can"), and a bevel. Click on your desired shape to select it. Click anywhere on your document and your shape will appear in previously determined measurements, usually equalling or close to 1"x1". You can also click and drag to draw your shape in the desired dimensions. You can modify your shape by clicking on it to reveal resize boxes. Click and drag any of these to resize your object and also change the direction it's facing.

What is a summary?
Select Insert > Shape. Select a 3D shape. Draw your 3D shape. Modify your shape.