My son and daughter look forward each year to the gathering and especially to their time with Jesse. Every year, Tina has a secret box of tricks filled with games and treats that she portions out at opportune moments in the weekend. This year, she had a "Makey-Makey." Jesse and the kids spent a solid couple of hours tinkering with it.
Really, this thing has so much to offer as an example of what 21st Century learning is all about. The best product from the two hours of play was a long list of science, math, art, and programming questions that emerged organically from their experience. The video says it all.
Check out the video from the makers of Makey Makey too. What a cool tool!