I recently came across a tiny python library called pyhipku, which converts an IP address, either IPv4 or IPv6, to a haiku poem. It uses a predefined dictionary all open source.
I wanted to make a frontend for this small library and using python and flask I set up a page for this: http://apps.hoyd.net/iphaiku/
I used the opportunity to learn responsive webdesign, using HTML and viewport CSS. The site should be resizing the content completely fluently according to the screen size viewing the page.