A spade of gardening tools.
A rumble of Harleys
Not my invention, but:
a 'stache of Rons.
A waddle of ducks
A few of pedants.
An eek of mice
A smash of hammers.
A sorrow of lovers.
A heave of sailors
My grandfather was a fairly eminent mathematician and logician, and a piece of family humor has come down that the collective noun for a group of mathematicians is:
A Sum of Mean Squares
And for a group of prostitutes:
An Anthology of Prose
A that’s just like your opinion man of bowlers.
A strip of teas.
A village of smurfs
A shuffle of zombies.
(I think I’ve posted this before)
mmm
A swing of gigolos.
(Not mine, but my favourite - best understood in the UK, Oz and NZ rather than the US) A wunch of bankers.
an ice chest of beers
Or a nice chest of beers.
mmm
A confusion of referees (when a bunch of them have to work out what just happened and need to refer to the law book).
A plethora of platypuses
A corruption of politicians