At my workplace they came up with employee appreciation day. They make a slightly better lunch and they clap for you when you walk into the cafeteria. I much rather be allowed to leave 30 min earlier.
While I understand the pipeline where those ideas come from (management appoints one poor soul to quickly come up with something that looks fun on paper, is cheap, quick and doesn’t allow for any possibility of rule breaking), they don’t really help me bond with anyone.
What does help me bond is being part of a team with a great leader that makes everyone want to push in the same direction and makes us a unit. For that you need solid hiring that takes into consideration what team the to-be-hired person is going to be working with at a social level