Paper Signals is a Voice Experiment that lets you make little voice controlled objects that track simple things, like the weather. You can build any of the examples Paper Signals on g.co/papersignals or https://smooth.technology/paper-signals, or use the repo to make your own Custom Signal.
The paper objects let you see how Bitcoin is doing, get a visual representation of the weather, or even track NASA rocket launches. Google has built a number of different signals Paper Signals is an open source project. You can grab the code on GitHub and create something of your own. You can purchase a bundle of needed items from here. For more information about Paper Signals, Click Here.