Artbreeder - Create beautiful, wild and weird images
Tilt Brush - Paint in spaces around you with Virtual Reality
Codenail - Create art with your code and logo and order a poster of it
PaintCode - PaintCode is a unique vector drawing app that generates Objective-C or Swift code in real time, acting as a bridge between developers and graphic designers.
No Paint - A game to create your very own art masterpiece
JS Paint - JSPaint is a web-based Microsoft Paint remake