ShapeShop - ShapeShop is an advanced and professional 3D design and modeling application that comes with an easy-to-use and user-friendly interface.
chaosMachine - One-click unique graphics generator
Sculptris - Sculptris: Enter a world of digital art without barriers.
Kandinsky.io - Abstract image generator
Misfit Model 3D - Misfit Model 3D is a 3D model editor that basically operates with triangle-based models.
IsometricSass - Make isometric 2D objects without Javascript