The logo for the sticker features images of the Liberty Bell, a four-leaf clover and the LOVE statue. The sticker raises awareness to One Fund Boston, which Massachusetts Gov. Deval Patrick and Boston Mayor Thomas Menino helped form to benefit the people most affected by the April 15 bombings.
"I think it's a wonderful opportunity for the City of Brotherly Love to show support for a city that suffered such a tragedy," said Kate Mastalski, who was in Rittenhouse Square for Nutter's announcement.
A team from the King of Prussia-based Cadient Group designed the logo after the firm's CEO, Stephen Wray, said he felt compelled to help the Boston victims.
Wray, a runner, said he had friends, colleagues, and clients who had participated in the Boston Marathon. He said he didn't understand how "something so pure" as the Boston Marathon could be halted by a "senseless act of violence."
"I'm just one of thousands of people who wanted to do something to help," Wray said after he addressed the crowd. "I'm just fortunate enough to have my colleagues and friends listen to my idea and make it a reality."
Independence Blue Cross, the official sponsor of the Blue Cross Broad Street Run, embraced the idea.
IBC president Daniel J. Hilferty said Nutter contacted him soon after the Boston Marathon bombings to say the 34th annual Broad Street Run would go on as planned, and that visible and hidden security measures would be taken "to make sure all runners are safe."
The heart-shaped "From Philly to Boston With Love" logo "brings a new level of excitement to the race," Hilferty said.
IBC and Cadient each donated $10,000 to One Fund Boston.
Joselito Huertas, the IBC fitness manager who rallied Rittenhouse Square with upbeat dancing Wednesday, said the Boston sticker "is great."
"It shows one nation, unity," Huertas said. "The logo is great with the Liberty Bell and the LOVE Park sign. It's cool."
The 10-mile Blue Cross Broad Street Run begins at Olney Avenue in the vicinity of Einstein Medical Center and Central High School, and ends at the Navy Yard.
Contact Sulaiman Abdur-Rahman at email@example.com, or follow on Twitter @sabdurr.