Pencil, Color Pencil, Water Color and Ink on Paper
Old doorknobs are cool. Especially the ones with old time key holes! A friend of mine had a very interesting doorknob warn so much the paint on the knob was rubbed off. This is one of 3 versions I did. This one is the simplest and least amount of color. Later, I tried another which I loved so much I had it framed forgetting to scan it or take a picture of it. Below is a horrible picture of it taken with my iPhone.
As you can see I added more shadow and used these ridiculously expensive felt tip markers from Prismacolor Premier. They make extremely subtle grey which seems like a rip-off when you think about it. I suggest using them in a well ventilated room.