WaterColorBot Writing Implements
From Evil Mad Scientist Wiki
 WaterColorBot Writing Implements-- things besides paint brushes
We will be using this space to (gradually) build a list of writing implements (besides paint brushes) that are known to work with the WaterColorBot.
- Sharpie Pen (Not sharpie marker) -- This is the type of pen used for the stipple drawings shown in Update #6.
- Common mechanical pencils do not tend to work well, because the lead wears down quickly, and the pressure exerted by the WaterColorBot's brush holder can be inconsistent at the level of precision needed. Mechanical pencils that have spring-loaded tips may be a better choice.
- "Lead holder" (2 mm) mechanical pencils should work well in general.
- Plain (wooden) pencils should work well if the tip is not excessively sharp.