Lego yarn swift!

I heard through the grape vine that you can make a motorized yarn winder with legos, but my lego stash has no motorized parts and I've been having a hankering to make a swift because it's a pain winding yarn on upside down bar stools. So I put on my thinking cap and came up with a homemade lego swift! Check it out:







And the finished center-pull:




This is SO much faster then the bar stools.