and you can have gumballs while you wait

Fortunately, I'm not at the mechanic's often, but I wonder if anyone really eats these.

Pencil on 70# Strathmore drawing paper.

carding wool on a machine

A demonstration of a pre-1830 carding machine. Very efficient!

And still running, carefully, for demonstrations.

Pen on paper, nothing simpler than that. The harder part is drawing amongst the crowd of tourists.