Souvenirs for Pope Francis' visit to Philadelphia unveiled

Philadelphia Mayor Michael Nutter, left, and Aramark CEO Eric Foss unveil artwork of Pope Francis by Perry Milou during a news conference, Monday, June 1, 2015, in Philadelphia. Aramark has been named the official retail provider of event merchandise for the scheduled Eighth World Meeting of Families Congress and Papal Visit to Philadelphia in September. (AP Photo/Matt Rourke)

Philadelphia Mayor Michael Nutter displays a Pope Francis doll during a news conference, Monday, June 1, 2015, in Philadelphia. Aramark has been named the official retail provider of event merchandise for the scheduled Eighth World Meeting of Families Congress and Papal Visit to Philadelphia in September. (AP Photo/Matt Rourke)

Displayed is merchandise for the scheduled World Meeting of Families Congress and Papal Visit during a news conference, Monday, June 1, 2015, in Philadelphia. Aramark has been named the official retail provider for event merchandise. (AP Photo/Matt Rourke)

Merchandise for the scheduled World Meeting of Families Congress and Papal Visit is displayed during a news conference, Monday, June 1, 2015, in Philadelphia. Aramark has been named the official retail provider for event merchandise. (AP Photo/Matt Rourke)

Displayed is merchandise for the scheduled World Meeting of Families Congress and Papal Visit during a news conference, Monday, June 1, 2015, in Philadelphia. Aramark has been named the official retail provider for event merchandise. (AP Photo/Matt Rourke)