My company, Angular Startup, hosts a lot of servers for ourselves, and our clients. They are not all with the same provider, so it becomes a pain in the butt to monitor them all to make sure they are doing well.
In comes On Call Bot, a little photon that pings a list of servers and notifies you of any problems. It is fairly simple, with no required soldering and a very low cost to build, (especially if you got the photon from a hackathon, for freeeee.)
Once I finish this up, and make it all soldered, in a case that fits it properly, I will open source the design and the code. Before then, feel free to build this yourself, and make money on it if you like. I am too lazy to make a production version, but would gladly buy one if the quality was higher than mine. ;)