Went to Universal Studios for the first time in forever and had a chance to explore the Wizarding World of Harry Potter. Very well-themed (although I could have done with drizzly British weather instead of So Cal summer heat.)
I kept hearing about the wands you could buy which let you interact with certain spots in the environment, but I was struck by two things. First, the interactive wands are incredibly expensive. (So expensive that they also sell cheaper, non-interactive versions!) Second, the interactive spots seems so finicky that each one needs a Cast Member stationed at it to show kids exactly what they have to do. Cool idea, though.