I took some process photos of the last sink I made. The client wanted me to include a starfish, crab, and lobster, instead of the usual assortment of fishes...No problem.
First, I put the sink on a banding wheel and set a double wavy line around the upper edge with my slip-trailer. I fill that with a blue wash using a brush. Then, I layout a sketch with a pencil. The pencil lines burn out later in the firing.I use the pencil lines as a rough guide for the slip-trailed lines.
I fill in the lines with a blue wash using a brush.
I go back and add more watery, sea-weedy detail.
Then I add more. When I am satisfied with the image, Mick sprays the sink with a clear glaze.
The sink is fired to cone 02 in an electric kiln. This is how it looks finished. I sign each sink on the outside and add my little bird. If you open the sink vanity door, you can see the bird peeping at you. That bulge going down the side is the overflow, some building codes call for this, some don't. Might as well have one.
The finished size is about 15" x 19" x 8".
You can see a slideshow of various tile installations I have done.
Speaking of shellfish and tidepool inspired shapes, look at this:
This wonderful piece is by Heather Knight. It is handmade porcelain and would be great as a votive candle holder, paperclip holder, or just sitting around looking cool. She has lots of botanically inspired forms at her website, Supermarket, and her etsy shop.