First try to know the outer dimension (Total Length and Width of a box in which this item fit perfectly).
Now, Draw make a box of exactly the outer dimension.
Insert image and scale it exactly as the box size. Now the item should be of the exact size it is. You can also ask for clear images and from different view (Top, Front, or Side). If it is difficult to get the images, try to search for the image on Google. You may get some images clear images or with product dimensions as well.
Now, you can trace the outer line to make the sketch.
You can create a 3D model of any object by the reverse-engineering method.
Before starting to create the CAD model, You got to take some clear images of the object from different views like top view, front view, side view, etc.
Then you got to take the required dimensions of the object which will be very useful while creating the sketches for the CAD model.
Then you got to import the images onto corresponding sketch planes and if possible calibrate or scale the imported images to actual size or size close to that of the original object and start sketching the visible boundaries and apply required dimensions to complete the sketch. The created sketches can be used to 3D bodies of the actual object.
By following these steps in a systematic order, CAD models of any objects can be created from Images.