If you looking for a new Harp effect, take a look at the Harp Wah.
Have a look here: www.harmonicamute.com
The Harp Wah is a Resonator and Mute Combined for acoustic harp playing.
What’s that mean? It adds “Trumpet Mute-like”, “Brassy” tones to your acoustic harmonica sound arsenal.
* The Harp Wah is the only effect for acoustic diatonic (blues) harp playing.