Boomerang spoon

The boomerang spoon was a cooking utensil used by the Androgums. It was a type of spoon. Edwin Bryce wrote a book called Androgum Cookery for Novices: How to Master the Boomerang Spoon. (PROSE: Storm Harvest)

Behind the scenes
A "Mercurian boomerang spoon" was first mentioned in by Kryten in the 1993 episode. It is likely the boomerang spoon's appearance in Storm Harvest was due to co-author Mike Tucker who was a visual effects designer on Red Dwarf at time of this episode's production.