One thing I don't like about feeding thrown away produce to my hens, Pigs, broilers is the things that have been sprayed on those foods which I eat if my animals eat them. I live in the country though and have found in season, towards the end there are lots of things folks will give away from their homesteads if they know you will thank them. One couple who live nearby lamented this fall that nobody wants their unsprayed apples because they are so used to the perfect looking store apples. So true, there are many who don't want it unless it's wrapped in plastic.But for me, even the bad apples are useful for hen and rabbit treats.
The last day of yard sales at the end of the day is also a good time to get what's left free or very cheap. Also over the years we've had lots and lots of materials, and items such as kitchen cupboards, sinks, windows, plants, trees even bags of sawdust left from construction and remodel which we've brought home and used or given away to others. We once tore down a small addition on our road with two other couples for the materials which all of us had plans for and enjoyed keeping it from being caved in and burned. I heard about that opportunity while I was a volunteer with the local fire department.
Many folks appreciate being able to give something away rather than having to toss it away. Many professions and lifestyles include an opportunity to remove all kinds of things.
So do tell others what you want or appreciate and sometimes you'll get a call asking if you would like this or that.
Also I've known people who raised animals butchered them, but didn't want some parts of the animal. When I heard and offered to take those parts the offer was happily accepted.
Whe one of my daughters worked at an organic farm and market she brought home cases of not good enough to sell produce.
Just ask around!