dime
Simon and
Simon & Garfunkel
or
Simon & Simon
That one might be tricky.
Bert &
Lillian (j/k, that was my Nana and Granddad)
Ernie
Rum and
Coke
Cagney and
gingham dog and calico cat
They’re over there, at the table.
Oldies:
Goofus and Gallant
Davey and Goliath
Lacey
Starsky and
Hutch
Sturm und
Drang
Heckler and
Koch
Smoke and
Mirrors
Fish and
Marillion (or chips)
Dave Dee, Dozy, Beaky, Mick &
EDIT: Okay, it’s not a pair* technically*. 
Sacco and Vanzetti
Butch and Sundance
Trinidad and Tobago
A&W
The Prince and The Pauper
Forever and Ever
Arm and Hammer
Looks like I hosed the game, since some are still playing it the old way.
Need the OP to clarify.
I’m enjoying whatever happens 
Johnson &
Johnson
Mork and
Mindy!
Will &
Grace
Abercrombie &
Be sure to hand out one for “circuses” also; hilarity ensues.
Schuster
Fitch
Tits &