The stars spent quality time with their kids this weekend on afternoon strolls, at birthday parties, and during trips to the farmers market. Rachel Zoe and her son, Skyler, donned stylish hats for a walk around NYC, while Gisele Bundchen got some fresh air wheeling Benjamin around Boston. Meanwhile, in LA, Ben Affleck spent an afternoon at a fair with Seraphina and Violet, and Ryan Phillippe got down to business coaching son Deacon. There were many more celebrities out and about with their tots. Check out the rest of the adorable outings from this weekend.