Hi, at Estudio Nexos we have been working with Free Open Source design tools since Sodipodi days.
This is something we have done for Antique and Secondhand Bookshops Association at our region (Castille and Leon, Spain) with MyPaint, Inkscape and Scribus. Main art with MyPaint:
If you need some help understanding article do not hesitate and ask.
Thanks for such a great software.