One of my all time favorite parts of the Wizard of Oz was when Glenda the Good Witch of the West came floating into Munchkin Land in that awesome bubble of hers. It was just so magical. I’m not going to lie, even as an adult I’ve often wondered how the crew pulled that one off. I mean, color was a pretty big deal back then, so I am pretty sure they didn’t have the CGI technology to put that bubble around her. And it looks pretty legit. Like, how?! Now I am wondering if they somehow got the same tools used at the newest indoor playground, BUBBLEPOP! Because that…