If you're looking for something different, yet easy to put together as a fun project or to help teach others about the world of Arduino - check out this project by Instructables user "donovand". They've used some bare conductive paint and coated a small origami flower with it, which converts the flower into a simple capacitive touch sensor. A small vibration motor has been set inside the flower, which is activated when a hand comes near and interacts with the sensor. The flower is demonstrated in the following video:
That's a fun project which is quite simple and would be great to share with beginners and younger children. To learn more, visit the Instructable. And for more, we're on twitter and Google+, so follow us for news and product updates as well.