Huge whirlygig crown powered by the wind and its wearer's movements

I love this person-powered whirlygig crown by Isabel + Helen. It features a tree-like formation of different sized whirligigs that spin when the wearer begins to walk. This wearable sculpture is mesmerizing to see in action. Wouldn't it be cool if you could wear this and generate electricity like a windmill? 

From Instagram:

"People Power by @isabelandhelen"