Speaking of gadgets, I bought this pry bar years ago and have used it for many small tasks. It was perfect for unsticking the windows in my old house that had been painted shut, for example.
But guess what this gadget is really called? It's a hive tool. Yep, a piece of standard beekeeper's gear has been lurking in my toolbox all this time and I didn't even know it. You use it for prying, loosening up or scraping parts of the hive, because the bees tend to glue everything down.
There's another kind of hive tool, sold by the backyardhive.com people, that is specifically for top-bar hives. It's pretty, and expensive. But I'll probably end up getting one, too.