This picture is from September, when First Son read in
Blood and Guts about the importance of the opposable thumb. One of the activities recommended was taping your thumb to your other fingers and trying to do all your normal activities for an hour. First Daughter and Second Daughter thought this looked like so much fun they couldn't be excluded.
If nothing else, this school year my children learned thumbs are awesome.
* If you want to try this yourself, athletic tape worked the best. We tried two or three other kinds before hitting on one that actually held.