Apparently the Jebao WP25 has a video out. I'm looking forward to testing out one of these and on RC you can see a size comparison between the 25 and 40. The 25 is waaaaaayyyy smaller. Rumor has it they go for $30 (not including shipping of course). If I am not mistaken the video below is in a 75 gallon. This pump is tiny but still creates quite the wave. Once I can find one available I will definitely try this on my tank and give a review.
http://www.youtube.com/watch?v=fYc1hZy5iV0&feature=youtu.be
http://www.youtube.com/watch?v=fYc1hZy5iV0&feature=youtu.be