Sample Webcam Widget
From Chumby Wiki
FLA source file (requires Flash MX or later): samplecam.fla
This example file shows how to make a simple webcam widget that displays a JPEG image feed. This particular cam is showing the Turtle Bay Resort Spa on Oahu - this camera is actually under user control on their website, so you may see it move every now and then.
.fla requires Windows. For a simple webcam on Linux, see Flash_on_Linux_Using_Ming
Other examples: