I may not have the location exactly correct--as I recall, from the ferry landing you go straight…read moreback into town, up a narrow alley and small shops that abruptly turns up and right and up. On the landing above is a storefront for Ceramiche Casola (the location is not listed on their website). No doubt it is active only for the tourist season.
But if you happen across it, the offerings are amazing. Beautiful tables, vases, planters, all hand-painted and custom. They literally don't have "stock" items to walk away with. You can get something identical to what's shown, or change it however you'd like.
We commissioned a 42" patio table, following one of the patterns shown but changing things up a bit--a little darker blue, a little lighter green, put bees where the butterflies are...and oh yeah, put our family name along the rim.
The table is utterly indestructible, made from carved volcanic stone and fired at like 10k degrees. Nothing can happen to it.
It was not cheap--2800 euro if I recall correctly--but that does include an iron stand for the table and shipping to the USA. We were quoted ~6 months delivery but it came in 3.
The table and stand were delivered in a wooden crate with "Fragile" all over it--that's how I knew it was Italian (haha). It was exceptionally well packed. Two people highly recommended to move and place the stand and table. The stand was very beefy, definitely no corners cut. Once up it is a fabulous reminder of a great trip. It has held up to the snow and ice of NJ no problem.
Since it's custom-only it takes some time, but it's time well-spent.