Today I had my semi-annual dentist appointment and as usual came home with a brand new toothbrush.
Warning: Do not try this with a used toothbrush! It will gross you out!
For this photo I propped up the toothbrush and used my mini tripod. I set the ISO at 100 to eliminate any noise (graininess) and minimized the Aperture to ensure the entire depth of field would be in focus. This combination of settings requires a very slow shutter speed, which is not a problem indoors as there is no wind to worry about.
In addition to the normal room lighting which was pretty dim, for this photo I used a small LED flashlight, which I swept back and forth across the scene at various angles during the entire 13-second exposure in hopes of minimizing the shadowing.
ISO 100 F/45 13-second exposure
Toothbrushes sure have evolved over the years into some strange looking devices!