Picture
While this cylinder was still wet (right after I threw it), I used a brush to paint on blue stain. We'll see what happens!

Picture
This bowl actually has both sodium silicate and stain on it. The sodium silicate didn't work too well though because I forgot to remove the water with a blue rib before applying it.

 
Last Saturday, I met a man selling ceramic bowls and mugs at the Holiday Market in Fall City. I picked his brain for his techniques and I was most intrigued by his use of sodium silicate. He explained that if you brush sodium silicate on the outside of a cylinder that has just been thrown, wait 5-10 minutes, and then widen the cylinder into a bowl, the outside gets cracked. Excited to try it out for myself, I got some aqueous sodium silicate from Mr. Hagler. The sodium silicate crystalizes and, when the bowl is widened, the sodium silicate cracks . The inside of the bowl is still smooth but the outside isn't. Here are my first attempts.
Picture
Sorry about the finger in the picture. This is my very first attempt. I left the sodium silicate on too long before widening this so I couldn't widen it much. I learned that I should throw a bowl that is only barely narrower than my I want it to be post-sodium silicate.

 
Picture
Here is the squat little base for my lidded project. I threw a lid the same day and the next day pulled a small ribbon of clay, which I attached to the lid for a handle. This project is porcelain and quite light due to thin walls and an extremely thin base.