Self-Defense Kung Fu - Sanda Takedown
Human Weapon: This video tutorial teaches you the Sanda Takedown trick.

Self-Defense - Muay Thai - Flying Knee
Human Weapon: This video tutorial shows you how to do a Muay Thai Technique. A flying knee (known as hanuman thayarn in Muay Thai, and sometimes called a jumping knee) is a knee strike very similar to a front knee, except that it is performed in stand-up fighting by jumping, and often by rushing towards the opponent.

Self-Defense Marine Martial Arts - Horizontal ButtStroke
Human Weapon: This video tutorial shows you how to do an Horizontal Butt Stroke. Almost Identical to the Buttstroke of Krav Maga, But they didn't mention anything.. They did however combo it with a slash and thrust, so that was a difference.