The instruments are made from top quality ice. It must be free of any air bubbles. The instruments are carved using saws and knives. So far these instruments have been created and recorded:

Iceofon
Ice Harp
Ice Horn
Ice trumpet
Ice percussion
Ice didgeridoo
Ice guitar
Ice fiddle
Ice bass drum carved from one block of ice

In addition, all stands, supports and tables are also made from ice. Only the bass drum pedal, fish line for suspension, and the strings on the Ice Harp are made from materials other than pure frozen water.