Environmental protection is one of the issues that people are focusing on in recent years, and "back to kiln" is about making green choice fun. my work is about using rice husk, an agricultural waste, to make packaging. When a customer buys a product and uses it, he/she can Reuse/Remake/Return the product, for "reuse": because of the hard nature of the rice husk, the user can reuse it directly. For "remove": In the production process of the package, only rice glue is added as the only material to bond the rice husk, and because of the characteristics of the rice glue that can be easily removed, it is easy to reuse the dismantled rice husk and press the molds again, or re-break it into powder and press it to make toys with no fear of accidental ingestion. For "return": rice husk can be recycled and reused, increasing the user's awareness of environmental protection.