Wow! I could've used one of these the other day.......! It certainly could be ideal for shooting at an aquarium or in other situations where one wants to be able to get the image without a bunch pesky reflections interfering.
The kind that would think it odd if a guest was showing up with a plunger. A plunger sends a pretty clear message “I’m here to stop up your toilet, but don’t worry I’ve come equipped to deal with it” I often fly to these hotels, curious what TSA would think of a plunger as a carry on. I once carried a short garden spade on board, but that was the pre-TSA days.