We strive to improve the experience of patients and families battling with cancer.

We seek to provide positive memories for patients and their families during an otherwise difficult period. We believe that through the experience that Little Wonder provides, these patients will also obtain better outcomes.
Our Team

Seth Feuerstein, M.D., J.D., Founder

After completing medical and law school at New York University, Seth completed his clinical training at the Yale University School of Medicine in New Haven, CT. During his residency training he developed a fellowship to train clinicians in technology commercialization from academic centers and worked on intellectual property management, licensing and new venture development for Yale University in its Office of Cooperative Research. He then co-founded and was a general partner with Elm Street Ventures in New Haven, where he focused on early stage company investment, management and formation before leaving to develop and launch a biomedical engineering spinout company with intellectual property from Cornell and Yale Universities. He has been involved in the development and founding of several companies including HistoRx (where he is on the Board of Directors), Carigent Therapeutics (where he was the President and remains on the Board of Directors), Affomix and Biorelix.. He is also a Co-founder and the CEO of Cobalt Therapeutics.


Sharon Major Feuerstein, President & CEO and co-founder

Sharon has a degree in communications from Ithaca College, and has experience in radio promotions, advertising, marketing, media buying and media sales. She began her career at WNEW-FM, when it was a Classic Rock radio station, and got to work within an amazing promotions department. There she solidified her love of music, and being at live concerts. Next she joined Young & Rubicam where she helped roll out successful campaigns for large corporations that utilized television, radio, and the internet. From buying, she moved to National Radio Sales joining Interep, the Nation's largest Independent Radio Sales & Marketing Company in the United States. Prior to running Little Wonder, Sharon served on the Boards of both the JCC of Greater New Haven and the Jewish Federation of Greater New Haven. In her free time, Sharon loves to be outside-hiking, biking and skiing with her husband and 2 boys.


Clarky Sonnenfeld, Executive Director

Clarky earned her B.A. from North Carolina State University and a J.D. from Quinnipiac University School of Law. She began her career with Fairchild Publications, a division of Condé Nast, later Ogilvy & Mather where she worked leading marketing and conference planning, and events logistics. Clarky is a Guardian Ad Litem, an advocate for children in custody disputes for the State of Connecticut. She serves on the board of Mishkan Israel Temple, and volunteers her time with several local non-profits and coaches youth sports in the New Haven area. Her favorite pastimes include reading, kayaking, singing and dancing to Beatles music with her husband and two daughters.


Benjamin Au, co-Founder

After graduating from Yale University, magna cum laude, he has been in the development and founding of several companies. He is an aspiring entrepreneur and is currently a Project Manager at Cobalt Therapeutics.