Theres a phrase in the UK that is "Cheap and cheerful" which I think is perfectly apt for this
I think "cheap" sounds worse in American.
I would say "low-cost, high-impact" when that makes more sense.
In this case it's more like low-cost high-delight which does sound a bit better than "cheap thrills" ;)
The owls do seem to convey a sense of communal grumpiness, expressed individually :)
Not unlike HN at tines . . .