You threw something away? I used to do that --- but no more. Until I have a supply of "stuff" I would think would never need, I don't pitch anything gear related. I've used old carto covers, revived an atty or two, used the temporary caps of various atty's and clean and use sample bottles--for travel or sharing. I have no idea what I'll ever do with the soft carto caps, but if I get rid of them all there is sure to be a sudden demand!
I'm sure the 0 rings will become available through Vapage. I'm guessing it will be after this next batch of XL's and the Vmod version II is restocked---but just might be at the same time.