Each year the Marshall-Brennan Project hosts the annual William H. Karchmer End-of-Year Celebration Arts and Awards Ceremony where the high school students demonstrate their constitutional understanding through artistic expression, such as essays, poetry, and t-shirt design. T-shirts with the winning design are distributed to all Marshall-Brennan participants.
The End-of-Year Celebration often features guest speakers and partnerships with other various DC youth and arts organizations. Mrs. Thurgood Marshall is a regular participant. Mary Beth Tinker has also been present to speak and to help present awards each year. Additionally awards area given to organizations and individuals that have shown dedication and support to Marshall-Brennan that year, standout Marshall-Brennan Fellows, and other noteworthy contributors to the Marshall-Brennan program.