iPad. I got one from work a couple weeks ago to use for my job, but a big benefit of that was being able to download some apps on it for the kids. Came in handy on the long car ride, but also for a bit of bonding time and showing family members all the wonders of technology. They showed Oliver a Mickey app, Great Grandpa got a kick out of watching Ian play Jake (there was a comment from Grandma about how she remembers dial phones being a big deal), and Aunt Stephanie added some of the apps we mentioned to her iPad, which the kids then had to watch Owen play.
Teasing. Mostly from Uncle Brian or Darrin, but even Great Grandpa got in on the action.