When you change your diet, some of those kitchen items that were once handy to have around now become clutter in the cabinet. I've been vegetarian since I was around 11 or 12, but more recently finally went vegan. No more eggs, no more dairy.
My angel food cake pan. I can't think of any other use for this that wouldn't be better served by another pan. I thought briefly of saving it to plant a few flowers in in the spring, but it's in really good shape so it's going into the donation box instead so it can be used by someone else for its intended purpose.