Frustrated with the constant washing and leakage of traditional cloth diapers for her own children, Donovan began searching for a better solution. She recognized a clear unmet need for a waterproof and disposable diaper covering.

Using a shower curtain, Marion sewed the first prototype of her waterproof diaper cover. This early version, dubbed 'The Boater,' was a significant improvement over cloth diapers in terms of leak prevention.

Donovan applied for a patent for 'The Boater,' officially documenting her innovative design and claiming ownership of the invention. This was a crucial step in protecting her intellectual property.

Donovan began selling 'The Boater' at Saks Fifth Avenue and other stores. The product quickly gained popularity among parents, who appreciated its convenience and effectiveness. She manufactured the Boaters herself.

The patent for Donovan's diaper cover was officially granted, solidifying her exclusive rights to the design and further enhancing its market value.

Marion was looking for larger means of production, so she sold the rights to 'The Boater' to Victor Mills at Procter & Gamble for $1 million. This sale marked a pivotal moment, as it paved the way for mass production and widespread adoption of disposable diaper covers.