Josh made this wooden pencil case housing for me on the lathe at QueLab hackerspace. I just slip a store-bought lead holder inside, and it stays snug. The extra thickness around the pencil makes a huge difference, as I can control the pencil better.
I still hold the pencil the same way I would for writing, but the thicker pencil casing throws a lot of the movement into my shoulder, allowing me to draw longer lines. As it is round, I can still twist the pencil tip a bit with my fingers, as I push and pull the pencil at the same time, with my shoulder.
Lead holders always break on me, and I can push them out of the pencil case holder when that happens (and put in another lead holder). With the custom made thicker pencils, like I had in the past, I'd have to throw away the whole pencil when something goes wrong.
The Gelli printing process was fast and satisfying, as one could create a whole pile of colorful prints in an afternoon, without using a press.
I wanted to make marks, and draw on the Gelli plates. I could not do that with a pencil or any hard stylus, but the Q-Tip worked just fine. Plus, I always prefer to take paint away, rather than put it on, so drawing with a Q-Tip aligns with my temperament.
I wondered if one could coat a Canon scanner with a thin coat of gelatin, and take it to figure drawing. During the breaks, one might plug in, and scan the drawing into the computer. The Akua inks that we used, (the instructor preferred Open Golden Acrylics), do not dry until pressed on the paper; therefore one can draw into them during a 3 hour long pose.
If not, one could always take a photo between breaks, perhaps on a copy stand.