to ATP!
While I didn't find a nursery online selling them, looks like the Frostkiss is a series, here is the whole plug company that supplies the liners to the nursery, ask around your local nurseries to see if they carry it.
http://www.ppandl.net/index.cf...
If you edit your profile, it's nice for us to know where you are from!
The photographer of the image, member kniphofia, is from the UK, so at least we know they are available over there.
