To use this feature simple eval (require 'figlet) type M-x figlet and you will be asked for a string. If you use a prefix (C-u M-x figlet) then you will be asked for a font. Have a look at `figlet-comment', `figlet-figletify-region' and `figlet-figletify-region-comment'. Warning, leaving large ascii art text in your teams codebase might cause an outbreak of physical violence.