Tardigrade plushies for unkillable cuddling

Looking for a nerdy and obscure gag gift for a science-minded friend? How about a plushie of the toughest organism on earth? There's a motherlode of tardigrade plushies on this Japanese site.
They even got the mouth right:

item_163323_l

The creator tried to be as accurate as possible, seeking guidance from professor Kazuharu Arakawa at Keio University.

Some comparison shopping found a few fancifully colored options with cute anime eyes, but discerning tardigrade lovers will want the anatomically correct ones.

The brown option is nice, too:

tardigrade-brownクマムシぬいぐるみ [stuffed tardigrades] (Village/Vanguard)