Here's an old pencil drawing. Get some old brown paper bag and cut it into a square, and then get some Prismacolor pencils. Black and White.
Draw with the black 1st, and when that's all done hit the highlights with the white pencil.
IF you don't have a brown paper bag you can actually go get some colored paper at the store. I don't recommend construction paper. When you erase it the paper will rub off. Now that I think about it, those Prismacolor pencils don't really erase anyway. Go ahead and use construction paper if you want; just don't make any mistakes.
If you do you can do what I do and work it into the picture somehow. A bad line can easily become a fly buzzing around the subject's head, or a sore on the subject's head. If you are drawing something pretty then don't use the "flies and sores" trick.