The cool thing about Arduino is that it lets you do so many different things that it's really about what the user can think of. And we thought of so many things to do. Thanks to the Arduino we were able to feed pets with tweets, water our plants automatically, make a guitar pedal for crazy sounds, and so much more. So please dig into all these projects of ours and find out what the Arduino is capable of. Redo a whole project or even just a part of one and make it your own. It's all about your own expression of what's great and the Arduino can be your new best friend in making it happen.