Wouldn't these be amazing?! But it'd definitely be harder to keep the kids awake.
On a much happier note, we had an incident yesterday with the power cord for my tablet. Seeing as how the battery on this thing lasts approximately 22 minutes, having a good cord is important. I was a bit worried after a piece came off and the charger refused to work afterwards. I stopped by the tech office at school today to find no one there - but I did find a big bin of random cords. Luckily, one in the bin looked familiar, so I smuggled it out - and it works! Thank goodness. I don't think I could take an involuntary break from twitter right now. :)