The fabric pen I use to draw the faces is the micron pigma pen. I mainly use brown and occasionally use black. It has a very fine tip and when used delicately gives no bleeding. I use size 01 but they do come with a wider nib, they also come in other colours.

The pencil I use to blush cheeks is called a prisma colour pencil, the colour is 'Henna' it will give your faces a lovely glow to the cheeks. Both are available at quilting shops.