In a plain brown wrapper, but that don't fool me.
Didn't anyone ever tell you that the sexiest things come in plain brown wrappers?
It probably needed to be sent in a plain brown wrapper before candidates would sign up.
I found it in the mailbox in a plain brown wrapper with no return address.
From the reaction of industry professionals, though, it seems a plain brown wrapper would have been more appropriate.
Not too many years ago, most of the current Valentine book offerings would have been delivered in a plain brown wrapper with no return address.
Anything more than a plain brown wrapper around a 10K may be considered excessive for some downtrodden companies.
Fast food will come in plain white wrappers, etc.
"All I remember was that everything good you had to sneak in in a plain brown wrapper."
Now they're going to be in plain wrappers and slipped out from under the counter into a customer's hand.