Wheels Spinning, Spinning Wheels

While reviewing [Flickr](http://www.flickr.com/) images for a web site banner, Marcus poked his nose over my shoulder.

Marcus: What is all that?
Me: Yarn.
Marcus: That’s a lot of yarn.
Me: Yes, it is.
Marcus: So, do they have yarn making machines?
Me: Yes, they’re called spinning wheels.
Marcus: Oooooooh.