The ASTB has a yearly shoot to raise money for the Alabama Children's hospital, for years I would try to have a bow ready to donate. The club had a free BBQ lunch on Saturday and auctioned off a variety of items after the supper. Tim bid $500 for the bow I mentioned, an enormous sum for a bow back then.
Here is the last bow I donated, a wonderful BBO, the young ladies Grampa bid $300 for her to have it, I included a matched set of arrows that shot well out of the bow. This was the most underperforming BBO that I ever made, I glued reflex into it and it developed string follow. With the tournament date nearing I thought what the heck, got out my heat gun and toasted the belly of this bow to the max. It regained it's reflex, I knew I had a winner with the first shot, the bow had turned into a rocket launcher. 10 years later it is still the high performer it was when I auctioned it off.

The other way I donate stuff is to trade an item for a donation to St Jude. I price the item and give buyer a link to the St Jude donation page. I request a donation conformation number after they donate, when they give me the number I ship the item. I always pay the shipping on any item I donate as a "thank-you" to the person for their donation.