I stumbled on to this link with a new instrument called the Tong Gong. The 6 metal tongues are attached to a wooden base. The tongues can be changed and placed in any configuration, and each tongue can be tuned over a range of several tones. Furthermore, the tongues can be fine-tuned very precisely. This makes a great variety of tunings and configurations possible.
It's produced by xx of Tong Instruments.
Here's a link: http://tonginstruments.com/
Here's a couple videos: