3" by 5 foot YouTube Video on Making a Hand Suction Tube Called the Gold Super Sucker

This video offers free construction instructions of a super sucker; if you watch this it does a good job of demonstrating how to make the build. Reed Lukens provides a written set of instructions that are excellent.
If you want to learn about gold prospecting, this gentleman has 146 videos.You can skip from one to another and learn a heap of stuff. I highly recommend.

http://www.youtube.com/watch?feature=player_embedded&v=f8Penqua6R8