Dave,
Just like you do "Teardown Tuesday" how about a semi regular series on engineering related (all types, not just EE) toys and activities that you share with Sagan? This could be as simple as a new set of blocks to Legos, trucks in a sand pile or a trip to a museum.
I think this would be great because it could help inspire other parents to share engineering with their children as well. Lets face it, just because someone is a great EE does not necessarily mean he knows all the best toys and activities to help children learn.
After all, isn't helping children learn to love engineering something worth sharing?