This project arose from a very specific need. An IRC channel I am often in has a decent number of drinkers. As a fun little project, I make an irc bot in Perl which tracks users estimated blood alcohol content over time. Since our weather bot was broken also, I interfaced with DarkSky to provide real time and forecasted weather. Use the bot yourself, or come chill with us in #alt.linux on Freenode (https://webchat.freenode.net/).
I happened to leave a bucket outside, and was reminded of that when the dog started drinking rainwater out of it. I went to dump it out, but found a lot of tadpoles inside it! We moved the tadpoles to a larger container of collected rainwater and brought them inside. They get visibly larger by the day!