Here's a guaranteed laugh hit! Call a volunteer on stage and have them drink some water. Then hold this funnel to your ear, your elbow or wherever.
Suddenly, the water starts pouring out of the funnel! You have full control over when the water starts and stops. Relocate the funnel and the water will flow out again!
There are so many fun things to do with this clever device. Manufactured from brass for durability. The audience howls with laughter!
With German instructions