This white detail within my carving is applied after I slip the pots in flashing slip. I made slip out of some porcelain clay and use that to brush in the small white areas. After it is bisque fired, I wax these whites areas and then brush in my glaze over the carved panel. The purpose of the wax is to repel the glaze from getting in the white areas so I have varied tones and depth within the carved area.
There is another soda firing potter on the Salt and Soda Network, Colleen Riley, who uses vitreous colored slips using mason stains up to Cone 10 in soda. She has really achieved some beautiful results on those tumblers (check out the link). One day I'd like to do some testing with some colored slips. After I dip the pot in flashing slip, I could brush in the colored slips and not have to wait until after the bisque to brush on glaze. Plus, I think this process might be more inviting because I prefer working with leatherhard pots rather than bisqueware. The reaction between the colored slips and the soda could create some interesting results. It's definitely an idea to ponder and test that's been percolating around in my head.
This is one of the beginning stages of an oval basket, draped upside down. The clay is really soft right now so it'll be a long time before it firms up to stand up on its own right side up. Then I have more texturing to do around the edges and some handles to add.
My creek just outside the door is usually one of those soft gurgling, babbling creeks. Today after two days of steady rain, it's roaring. I worry about others in this area who probably have had some flooding. The patterns in this puddle in the sidewalk captured my attention today: