

I just think that the head of the brush is a rather arbitrary threshold for when a toilet brush is considered icky or not. The whole thing, including your hands, go into the toilet when you use it. Being able to detach the brush head hand free is a very small but costly improvement. I’d go as far as calling it a false sense of security.
Also, I wash my butthole when I shower. With my hand.
This question is really wide. You’ll have to narrow down what the challenge really is.
Start by doing a mind map on a piece of paper.
You’ll need one for the product, but you’ll also need one for the business.
Once our have the entire idea spread out like that, you can start researching the things you don’t know or contact people who do know those specifics.