Another fabulous ceramic artist, Jane Jermyn. She works in paperclay and is inspired by natural forms. She uses several firing methods, including Raku and Obvara, for which she has a FB page (see below).
Exhibition and Interview
Obvara Firing FB: https://www.facebook.com/Obvara-firing-technique-372511962812858/
https://ceramicartsnetwork.org/daily/firing-techniques/raku-firing/marcia-selsors-tips-on-obvara-firing/ includes video for crackle pots using sodium silicate