Not so much a technology post, but think it over - giant outdoor bananagrams... Okay, I mostly thought Sallie would enjoy this one, but perhaps others could make use of it. It'd be a good first day of school activity as well.
Tom - Do you have a RaspPi?? My guys are currently working on using it to play sounds when someone walks between two infrared sensors (think musical stairs at St. John's). Fun stuff!
Concurrently they are dabbling with an Arduino to run a DIY 3D printer they are building.
I'm in over my head here!