This weekend, I went over to the petting zoo and gave them our "care package", containing private key, frame with quotes, and explanation on how to use ETH. They were a bit overwhelmed and very grateful.
They'll post about it on their web page, including a picture of happy pigs & picture frame, and I'll share the link with you here so you can verify that your donations did indeed end up at the petting zoo.
Also, I've just added an article on Steem about this project and what I've learned doing it.
You can find it here:
https://steemit.com/cryptocurrency/@drpig/i-printed-my-own-money-and-sold-it-for-charity