Let's suggest some new ones, like

-A fabric of geckoes
-A mint of cowries
-An erebus of trilobites
-A city of polychaetes
-A beckoning of aye-aye
-A writhe of maggots
-A canopy of crinoids
-A dick of cockatoos
-A reef of pentastomids
-An oxford of silverfish
-A poise of cellar spiders

and so on
dictionaries are fun