Gravity Sketch is an incredible virtual reality 3D design tool created by a group of innovative designers in London. It allows you to step inside the world you are creating, with the tools becoming nearly invisible as you create, and the software responds to pen pressure. Models can be exported and then easily 3D printed. The product has been launched on Kickstarter and you can get a license for just £25 ($32 USD) as a Kickstarter backer; otherwise, the product will retail for £45 ($60 USD). Read more at 3DPrint.com: https://3dprint.com/151941/gravity-sketch-kickstarter/