Not sure if this has been posted here before (I'd be surprised if it hasn't) but I just saw this for the first time today on Simply Bitcoin and was much impressed...
The Lightning Goats bitcoin powered interactive goat feeder is open for business from morning to evening Mountain Time (GMT -7). Sats sent during this time will trigger the feeder once treats reach 100%. Use the QR code in the video to send treats, zap the herd on Nostr, or send sats to lightning: herd@lightning-goats.com
Website: https://lightning-goats.com/