Those are lovely. I would be a bit worried whether the reservoir was big enough - you don't want to have to be filling it multiple times a day! Just check that.
One other thought - you can buy the pumps on their own so you could even make one if there were ceramics you loved.
I popped in here to give you this link. Sadly I lost the battle to save my beautiful Bella and I posted on Bob's thread. It just happened so I am a bit numb - I got way too close to Bella while she was sick and so am a bit lost. I will be fine, but need to step away and think of other things - caring for her has been all consuming recently.
https://www.backyardchickens.com/th...es-stories-of-our-flock.1286630/post-26018687