I've gone nuts with the ceramic jewelry. I figure at least 1/2 of it won't make it through. At this point I've determined that they will require at least 3 kiln firings before they are finished. And, based on the fact that some will crack as greenware, some will fall apart in the bisque firing, and then I'll prolly lose some (cause they are so tiny) in the underglaze and glaze firings when they stick to the kiln etc. etc.