Disappoints me that major creative tools for VR are mostly being pushed out by the likes of Google and FB who are extremely likely to drop the projects within the next 2 years as their objectives shift because they're not creative tools companies. Would be much happier if some indie devs took up this space.
There are plenty of creative tools made by indie developers, including 3D modeling and sculpting tools. Most of Google's creative tools are aquihires (Tiltbrush, Soundstage) although Blocks appears to be internally developed. Some cool ones I can think of off the top of my head include SculptVR, Kodo, VRTX, Bound, Tvori and King Spray.
Think my main worry is the existence of the big players making things like this on a whim or acquiring things like this on a whim then dumping them (Let's be real here no way will google still by supporting tilt brush in 5 years) puts more indie devs off exploring this space.