Draw Rotating Auger

This is going to be a strange question.

I have an existing WPF application which monitors various pieces of equipment.  It is working fine as-is.

I know that one future modification to this equipment is to add an Auger, which is basically a long screw with VERY LARGE threads, which rotates within a cylinder, thus moving material through that cylinder.

This auger will need to be shown on my application running horizontally across the window.  See the following amateurish attempt to depict this in a forum question:

_______________
/_/_/_/_/_/_/_/_/_

My challenge is to somehow simulate this auger rotating.  A RotateTransform will not work, nor will a FlipVertical.  Any ideas how this could be done?

Thanks...

Ron Mittelman