Someone threw away a very recent 20" kids bike in really great shape that just needed a few minor adjustments and a new tube, so $4.50 plus a little bit of time and we have my little 2nd cousins first big boy bike ready for when it's time for his dad to teach him to ride.
He's only about 3 so he's not quite ready yet.
Then there's the antique-ish Tremont pipe wrench I cleaned up a while back, I've decided to give it to my Plumber uncle to display so I took an old cheap DOE and turned it into a little stand to help it display on a shelf.