Can I buy a replacement case for lost and found AirPods?

I work at a summer camp and we get all kinds of lost and found stuff that never gets claimed. Some kid lost there left AirPod Gen 4 and another kid left there right AirPod Gen 4, am I able to buy a replacement case for them and get them to work?

I want to preface, I am not stealing them, they’ve been here for over a year and no one has claimed them lol

[Re-Titled by Moderator]