I do not work at the patent office nor do I know of someone that works at the patent office. However, from what I hear, the patent office in the United States (and other countries, I’m sure) receive some fairly ridiculous patent claims along with accompanying prototypes. Want to see 18 ridiculous real things? Check the following video:
A toilet themed restaurant. Really?
Take note the above video isn’t of things someone tried to patent per se (I don’t know, maybe someone did try to patent them) but rather is just a video of things that make you think “what the ****”.