When it gets to the end of your digestive track, you would just take a seat on a toilet equipped with an automatic cleaning and recovery module. Or, all of the devices could be collected for refurbishment at the water treatment plant.

I am absolutely not swallowing one of those more than once.

Is that correct? I know there’s still a trace of atmosphere at the altitude the ISS orbits, and they need to occasionally make a burn to regain speed lost to friction.