I donated mine to the hospital where I had my j pouch surgery.  The ostomy nurses provide them to other people who need them.

Ask the ostomy nurse if there are organizations they know of that need products for ostomy patients who don't have insurance, or for low-income patients that cannot afford extras.  My hospital even donated some of their extra supplies to another country where a new appliance or bag is a luxury, can you imagine. While I had a temporary stoma I ordered more than I needed from my insurance company because I changed appliances sometimes 3 times a day due to my retracted stoma. Luckily my reversal was much sooner than we anticipated, so I had supplies leftover. My ostomy nurse took for everything to give to another patient who couldn't afford much.