@Randomosaur
The thing is, there’s a reason why if you do a tag search, they’re all the ones that are a bunch of them on a line. Because you need to leave the ring out so you can retrieve them. And if you’re trying to drill a hole through them to add your own retrieval line, then you no longer have any theoretical non-porousness.
Its not something you want to try and jerry-rig.
And yeah, seriously, no, just assuming ‘nah it’ll be fine I can totally just push them out’, I can assure you, there’s a very high chance if you try that you’re going to spend the next couple trips to the bathroom in a cold sweat, desperately hoping you hear a ‘clack’ sound when sitting on the bowl until it hopefully does.