These are basic pens that can be customised and modified to suit you own drawing style and needs. Use them with some of your own inks and handmade paper.
You can sharpen the point of your pen to different shapes, sizes and thickness, depending on the type of line that you want. Try a making a chisel, round , stub, square, angled, straight, brush, calligraphy, skinny, broad. All of these will give you different line and mark quality.
You can also cut the end of sticks into shapes like squares, hexagons, triangles or more to make stamps. Wider sticks work really well for this.