This year we started an afterschool class for the 6-8 year olds. It has been very popular! It is a very different class from the 9-12 year olds. More spontaneous. Some of the kids are really interested in the inventors notebook we keep and fill it up with ideas. I explain that we're creating prototypes. I bring in the tech we've worked with (motors/LEDs/etc), materials I've found, and pieces we've discovered during a Make and Break.
One of my youngest inventors wanted to make a tablet computer and kept their focus on that all year. This is the result (it's currently running a Minecraft "app"):
Other creations are more spontaneous. This one combines an LED and battery with some of the found parts.
Other inventions solve problems. This is a money hat, you can carry your money with you in a concealed pocket and look fashionable too!
And some are just following artistic expression and the joy of working with your hands. With this creation he wasn't sure what it was until the very end, he was just enjoying creating a pattern and working with the materials. It wasn't until the very last minute he decided it was a picture frame!