Portable Travel Bidet
Maybe not the tool that you want to talk about, but like a lot of tools when you need it, you really need it. I had surgery on my "wiping hand," and my off hand was wrecked years ago from a sports injury.
Knowing that I would be out of commission for at least a month, I found that the portable bidet was a pretty good solution. Easy to use lefty, able to use with warm water, and it did the job. Inexpensive and didn't need to change any plumbing. Useful for other problems as they might occur "down there." As they like to say discrete and easy to pack.
Uses common AA batteries that seem to have a long life.
