They're on Amazon just overpriced as shit
https://www.amazon.com/ElinCube-Premium-Platter-Cooking-Bibimbap/dp/B08R3DCF6V/ref=mp_s_a_1_3?crid=220Y352DRC2LQ&keywords=korean+stone+bowl&qid=1656450114&sprefix=korean+stone%2Caps%2C235&sr=8-3
https://www.amazon.com/Chopsticks-Durable-Stainless-Flatware-Dishwasher/dp/B08C2BHQ8N/ref=mp_s_a_1_4?crid=1OZ2CIQ6Y8ANQ&keywords=flat+metal+chopsticks&qid=1656450093&sprefix=flat+metal+chopsticks%2Caps%2C306&sr=8-4