Kinect
The Kinect was iconic in it's own right. It was the very first full-body gaming system that didn't need a controller. It was basically like the Wii, but totally device-free. It's not so popular anymore, but it was fun at the time!
SpaceX Reusable Rocket
SpaceX introduced a new method of space travel and exploration with its reusable rocket. It launched on December, 2015 and successfully delivered a payload. Each launch takes about $65 million, so it's still a bit costly, but it's on the way for true success!