Here’s a sampling of some of the sketches I did for C2E2.
Here’s my tools of choice for convention sketches.
Faber-Castell Pitt Artist Pens – here’s some links.
http://www.dickblick.com/items/20759-2023/
http://www.dickblick.com/items/21882-2020/
For a more comprehensive list of what I use in the studio try the following link.
Comics – Tools of the Trade
And for more on the convention, go to Tultitlán C2E2 2015.