SLIDE ICE
This is a string instrument with a suspended sheet-metal resonator/radiator, much like the instrument called Icicles described here. The difference between the two is that while Icicles has many very short strings, Slide Ice has a two longer strings on a guitar-like fretted neck. It can be played with a slide or by fretting.
In the audio clip, Slide Ice is joined by a rumba box.