These terms are still being concocted today. For those of us who like such neologisms, there is now a site dedicated to them: All Sorts (subtitled "a linguistic experiment").
A good place to start is the list of collective nouns sorted by popularity.
Some of my favorites are:
- a seemingly empty room of ninjas
- a brace of orthodontists
- a hush of librarians
- a _____ of mime artists
- a heard of homonyms
- a winter of discount tents
- a clutch of handbags
- a knot of string theorists
- an array of programmers
- a herd of eavesdroppers
The way the site works is that it catalogs whatever suggestions people make on Twitter (when they use the hashtag "#collectivenouns").
Naturally, I couldn't help but suggest a few:
- a closet of skeletons
- a clattering of abacuses
- an epiphany of light bulbs
- an ink cloud of octopuses
- a curiosity of question marks