When stories reboot, products resonate again too. My kids are huge Harry Potter fans. We have watched every film together. They have read every book. My youngest finished the entire million-plus-word series by age seven. When we visit Universal Studios or the Warner Bros. Studio Tour, the parts tied to that world are still the emotional center. And naturally, we have a few of those official wands kicking around. (Every member of the cast has their own unique style, you know.) Now Hasbro has...