Wireframe.cc - Sweet and simple online wireframing tool.
Form 2 - The most advanced desktop 3d printer ever created
WireframeSketcher - WireframeSketcher is a wireframing tool for creating wireframes, mockups and prototypes for desktop, web and mobile apps. It's a desktop app for Mac, Windows and Linux, and a plug-in for any Eclipse IDE.
BLOCS - Visual web design app.
Saola Animate - Easily create engaging HTML5 animations and interactive web content without coding skills
Shifty - More control over macOS Night Shift