Found these on Rock Auto for $3 dollars a pack. I originally thought they were $3 dollars a piece (which is still a steal), but I happily opened up my delivery to find four of these packages! Each package contains 5 pieces. Perfect fit.
It states directly on the package "Replaces OE F5RZ9F955AB" which is the original Ford part #.
Dorman Intake Manifold Vacuum Retainer Bushing
Part # DOR 47099
I found them listed under '2001 Mercury Cougar 2.0L 1989cc 121 cid L4 FI (3) DOHC', for whatever reason, but they matched my description so I bought them anyway.
I have 3 of these for sale right now if anyone is interested.