Cynthia McCollum has participated in the following Showhouses:
Hudson River Designer Showhouse, Nyack  NY
Ansonia Condominium Showcase, New York  NY
Cancer Research Institute Designer Showhouse, New York  NY
Kips Bay Boys and Girls Club Showhouse, New York  NY
House and Garden Color Showhouse, Mahwah  NJ
Susan G. Komen Foundation Holiday House, New York  NY