I started with this tiny publicity photo.
Then I washed out the color in the photo using Adobe Photoshop.
I enlarged the image to be pumpkin-sized, then exported a three color .gif file using colors that I selected (orange, yellow, and transparent). You can do four colors if you want to carve some of the area completely away, but I like to make a three color pattern and then just do the pupils white.
When I am not carving pumpkins, I run a bulletproof vest company. BulletSafe Bulletproof Vests are the value leader in body armor. We are very popular with people like armored car operators and ATM repairmen.