NAPS2 - NAPS2 is a document scanning application with a focus on simplicity and ease of use.
Quadbot - Build your own Robot
Simple Scan - Project information. Part of: The Gnome Project. Maintainer: Simple Scan Development Team. Driver: Simple Scan Development Team. Licence: GNU GPL v3.
Bitsbox - Monthly code projects for kids
XSane - A good proposal for SANE-2 has been written.
Harry Potter Kano Coding Kit - Build a wand. Learn to code. Make magic.