Sensory play is excellent for development and can be easily created using safe, household materials. For younger babies (0–6 months), try sensory zip-lock bags filled with items like cotton balls, beans, or dried chickpeas, or use a flat pan with a shallow layer of water for supervised splashing. For toddlers, you can make 'edible' paints using plain yogurt mixed with natural food colorings like turmeric or fruit purees, or create 'oobleck' (a non-Newtonian fluid) using cornstarch and water. Always ensure materials are taste-safe and provide close supervision, especially when using small items that could pose a choking risk.