While the creative idea of using homemade clay figures as prizes in a toy crane machine is understandable, it is generally not recommended and often prohibited. The primary concerns are safety and durability. Commercially manufactured crane machine prizes must meet strict safety standards regarding materials, small parts, and flammability. Homemade clay items may contain toxic materials, pose choking hazards if parts break off, and are not consistently durable enough for the machine's mechanics. Furthermore, their irregular shapes and weights can cause operational issues and player frustration. For operators seeking a unique touch, consider using professionally made, safety-certified plush toys or capsules and adding custom-printed tags or stickers. Always check your local regulations and machine warranty terms, as using non-compliant prizes could void insurance and lead to liability issues.