After donating 10 percent of November proceeds to N.Y.C. charity Women in Need, Mary-Kate and Ashley Olsen hosted a holiday event, donating time (and T-shirts!) to the cause. “Eighty percent of homeless people in New York City are women and children, so it’s really about getting them back on their feet,” Mary-Kate explains in the adorable clip. Watch as kids personalize StyleMint tees, moms get professional makeovers and photographers snap, for some families, their very first family photo. The video also provides a rare glimpse at the designers’ off-duty mode: mingling and kicking it with the very same lot their November initiative benefited! Very cool.