Hey Cabbie,
As far as a template for your first knife, I'd cruise the net till you find something you really like and trace it out, enlarge or shrink to fit you.
As far as pins go, anything works really. Some even use the bamboo skewers you use for shish-ka-bobs. So yeah, any old brass, aluminum or steel rod will work. For the fancy mosaic pins, they are real easy to make. Much cheaper than buying them. But like a knife, what might be easy to make, might be hard to make REAL nice...
Mike