Ralph Waldo Emerson's head made out of electrical outlets and switches

Noah sez, "I thought you might enjoy this piece I was recently commissioned to create for a play about an electrician who starts channeling the spirit of Ralph Waldo Emerson. Needless to say the people at the local used building material store were quite intrigued to know what I was going to do with the 100+ outlets & switches I as buying, when they found out it wasn't for a building."

Where's Ralph Waldo Emerson?

(Thanks, Noah!)