Find a high resolution portrait and convert it into a stencil. This image even has a very light background making easy to remove. I highly recommend finding an image with a simple light background.
Something like this.
Overview of my steps.
Original Image
Convert to Silhouette
Silhouette with No Fill Color
Original Image - Paste 2nd Time
Trace Image Again with Black & White Settings. Adjust for main details.
Change Preset to Black & White Logo and Set Ignore White
Original Image - Paste 2nd Time
Trace Image Again with Black & White Settings. Adjust for 'Hair' details.
Deleted the inner section of the main traced image. Used Eraser.
Both traced images together. The purple color indicates the 2nd 'hair' detail. *Only to show the difference.
Changed the hair details to black.
Selected the outside silhouette edge and created an offset path. Selected everything and scaled it to about 3 inches.
Added Key Ring. And it is Finished.
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5