Lid rest, made of bamboo or ceramics?

Futaoki, the lid rest is one of the utensils used in The Way Of Tea. We have been using a bamboo lid rest, but we started using a ceramic one from this month. You use a bamboo lid rest for hira-temae and a ceramics lid rest for the temae with a utensil stand.

In temae, we place the lid rest next to the kettle, and it is used to place the lid of the kettle on it. Or we also rest to the ladle on it sometimes.