Hi, apologies for the delay, you can buy the ring from: http://www.victorianplumbing.co.uk/Luxury-Chrome-Plated-Circular-Shower-Curtain-Rail.aspx and really beautiful curtains and rings from www.balenium.co.uk, regards, Rebecca.

Do you know of a US based company that sells the circular ring that attaches to the wall like this (instead of the ceiling?) This design is quite lovely. Thx.

Hi Merry, unfortunately I don't know of a US company, however I have just done a quick search on the US Google and this company came up who custom make, maybe worth sending a picture of what we have used to see if they can replicate for you: http://www.showerrods.com/Oval.html I hope this helps, regards, Rebecca.

Is it difficult to shower with this setup? I have a claw foot bath with the typical shower but showering is a pain. Looking for a more practical solution because there is not enough room for a separate shower.

It's not that's it's difficult but not the best option in truth for everyday/regular use. This is a guest bathroom so not used daily. Whilst fully functional it doesn't give you the best standing comfort. Perhaps you could ceiling mount your shower head more central than we positioned ours and use a standard horizontal shower curtain. Warm regards, Rebecca.