All the children have a parent impacted by the justice system and incarceration.
Mill was at the NBA store to greet the children and their parents before the shopping spree began. He told the kids Sixers partner Michael Rubin, who was also at the store, wanted to make this day possible for them.
After the shopping spree, the children boarded the New England Patriots team plane.
Owner Robert Kraft invited the kids to the Patriots game Saturday afternoon.
Music superstar DJ Khaled was among those showing their support for Mill and the children.
Action News anchor Sharrie Williams was documenting the event on social media and will have a full report on Action News on Monday.