Make your own :-

Damar Varnish
Painting Medium
Wax Polish
 

How to fit reservoirs to Dip Pen nibs.
Fitting a slip-on reservoir to your a dip pen nib will allow you to write for longer ie less need to dip into the ink. If it’s not fitted quite right the ink won’t flow properly.
 

Choosing Dip Pen Nibs for Drawing.
This guide covers the main parts of a dip pen nib; hand-pressure and choosing your pen nib; different nib tips for drawing and some examples of line thickness from thick to thin lines.
 

Gilding with Gum Ammoniac.
About Gum Ammoniac; ways of applying Gum Ammoniac; applying Gold Leaf to the design; using Gum Ammoniac with other decorative finishes like mica flakes/powder and bronzing powders, hints and tips.
 

Ink and its use.
Waterproof or non-waterproof ink; light-fastness/permanence and what it means; pH or acidic/alkalinity; the flow of ink with hints and tips on getting the ink to flow from the nib. The properties of ink and their effect on your work.

 
Automatic Lettering and Calligraphy Pens.
About these pens and the history of them; how to start and the type of lines; thick and thin lines; which ink or paint to use; how to fill the auto pen; choosing the pen with hints and tips.

 Zest-it web site.
For help with using Zest-it for either Oil painting, Coloured Pencils or Parchment work, please visit the Zest-it web site.
It has lots of information, hints and tips.