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This is a firework, besides,it's a flowerpot,too. there is soil and seeds inside it. The ashes of gunpowder will provide nutrients for the plents. The safety body can be used as the flowerpot when turned upside down. You just need to take some water and sevral days, and it will grow out and blooms!
Yang, Zhenhua; Xiang, yin; Tan, Rong; Zhou, Suni