Rainbow Bins Mermaid Sensory Bin Does your toddler dream of being a mermaid? Get this Rainbow Bins Mermaid Sensory Bin ($38), which comes with blue rice or orange-scented playdough, wooden mermaids, seashells, gems, a chest, and tools for play. Image Source: etsy.com Rainbow Bins Mermaid Sensory Bin $38 from etsy.com Buy Now