I came across the Rube ringtone on playglitch.net but couldnt download it due to the fact my phone doesnt take m4r files. So I took the opportunity to convert it to mp3 for anyone who wants it. (All copyrights Tiny Speck and I hope they dont mind, if they do I'll delete it straight away)
Download it from http://www.kennyellaway.com/rube.mp3