Diy Ceramic Paint With Baking Soda . 1 tablespoon of baking powder. A bristle or foam brush. TRANSFORM YOUR OLD VASE INTO POTTERY WITH BAKING SODA AND PAINT from in.pinterest.com I made a couple of mistakes along. Mix your paint and baking soda in a cup, i used the very sophisticated red solo cup. This is an easy diy project which uses a chalk paint and baking soda paint mixture to create an aged look on a ceramic vase.