Strange Carafes by Etienne Meneau

Strange Carafes are a set of wine decanter made by French sculptor Etienne Meneau. The intricate glass carafes hold one bottle of wine and go for as much as 5,000 2,200 Euros. All I want to know is: how do you wash them?
Previously: Elastic House for Those Who "Love Instability" also by Meneau.












