Jeff Waldman is raising money to hang swings in public spaces.

What started last year as a conversation about the simplistic pleasures of swings has launched into a multi-city experiment in unexpected joy and cerebral happiness. Via contact info we left on the wooden seats we’ve received notes from those that used them, talking about the surprising smiles that were left on their faces. They wrote how their days were made better and how the emotions that emerged from stumbling across and using a random swing permeated their afternoon and infected those they came into contact with. The joy felt and the urge to spread it was contagious.

It seems like maybe they could make a few tire swings while they’re at it.