Chris from pyroelectro combined a microcontroller an rc car and a pc to end up with a pc remote controlled rc. The car itself is not altered but only its remote control.
There are 2 modes of operation manual and auto. Complete how-to schematics and code can be found here.
There is a new use for your old hdd, from storage equipment "upgrade" it to sound! By connecting it to a sound source, sound card, amp etc. you can have your own hdd speaker full of memories from the data used to store. :) YouTuber p4e81 made it, why dont you?
Jason Amsel and Konstantin Klitenik made a clock from an old hard drive and also used an LCD touchscreen acting as display and controller for time setting. HDD clocks are not new but combined like this i think its the first time. In the page you can find complete documentation, schematics, scripts and video links showing the clock in action. Watching time never was more fun.