For a great project over the holidays, or a more serious investigation into automation systems - check out this automated candy sorter by Torsten. The system uses RGB colour sensors to determine the colour of the piece of candy under examination, and then places it into a cup depending on the resulting colour. A quick demonstration is shown in the following video:
Furthermore the project is also an interesting example of a finite state machine programming - a method that may be new to many Arduino enthusiasts, so it's worth a read for some new process knowledge. Either way, check out the project page to learn more and for the required design files. And for more, we're on twitter and Google+, so follow us for news and product updates as well.