Turning a Public Theater ticket into a donation?

I have a ticket to Office Hour on Sunday evening, Nov 26. I will only be in NYC for a few days after Thanksgiving, I knew there weren't going to be many options for Sunday evening so I went ahead and purchased a ticket to Office Hour. But now there are two other shows I am more interested in (Describe the Night or People Places and Things, trying to decide between the two). I called the box office at the Public and they said I had option of turning my ticket to Office Hour into a donation. Has anyone does this before? Do they give me some sort of paperwork that I can claim on my taxes?

Thank you jbird, I think that is what I will do since the Public told me they would frown upon me selling or giving my ticket to someone else

It would be a nice gesture to donate, but whoever told you that they “frown upon” selling or giving away the ticket is a jackass. They won’t lose money if you do so. Do as you like.

Thank you all. I don't have any friends or anyone I know in NYC that would be interested in the ticket. What would be the best way to try selling the ticket, if I decide that's what I want to do? Posting here? Would Stubhub be out? I've never re-sold a ticket before.