Wind-powered Whirligig Head with Moving Jaw

This week's Reader Contribution comes from Tim who has used a common whirligig mechanism to animate an uncommon theme.

Tim has fashioned a head with articulated jaw. The wind-powered whirligig mechanism drives a crankshaft which makes the mouth open and close.

Very clever, indeed.

For more on whirligig construction check out these titles:
Whacky Toys, Whirligigs & Whatchamacallits
Making Animated Whirligigs
Easy-to-Make Whirligigs
Whimsical Whirligigs
Action Whirligigs: 25 Easy-to-Do Projects
The Art And Craft of Whirligig Construction