After putting together free “play packs” for Philly students at the height of the pandemic, playground design and advocacy firm Studio Ludo had a lot of leftover craft supplies. So they expanded into the space adjoining their Grays Ferry office and invited families to explore the new “loose parts” library. Walk through the light-filled former church to find rows of toys and games plus everything from cardboard boxes to old kitchen supplies. Kids can pick up craft inspiration in the art nook or just let their imaginations run wild. You can also reduce your footprint by borrowing toys and/or donating your own. Best of all, Playbrary recently made admission free, because, as they say, “you can’t put a price on play.” 1313 South 33rd Street, unit A, Philadelphia, PA 19146, play-brary.org.