Natural wood soap dishes made from bamboo- Stained Bamboo A soap dish will increase the life of any bar soap, elevating it so it doesn't sit in excess water. The open slats quickly drains away water. Use in the kitchen or bathroom. Note: The stained wood soap dish may stain light-colored porous surfaces such as untreated marble or quartz. We have successfully used this on glass, granite, ceramic and porcelain counter tops and in fiberglass showers.