Er. Let's see:

Braeburn/Soarin'
Braeburn/Caramel
Braeburn/Big Mac
Caramel/Big Mac
Snips/Snails
Snails/Pipsqueak
[older]Poundcake/Pipsqueak
Filthy Rich/Fancy Pants
Fancy Pants/Blueblood
Filthy Rich/Blueblood
Blueblood/Big Mac
Hoity Toity/Blueblood
Hoity Toity/Fancy Pants
Fancy Pants/Big Mac
Flim Flam Brothers
Flim Flam/Fancy Pants
Flim Flam/Filthy Rich
Flim Flam/Braeburn
Royal Guards/Royal Guards
Royal Guards/Blueblood
Royal Guards/Night Guards
Royal Guards/Fancy Pants
Shining Armor/Braeburn
Shining Armor/Big Mac
Shining Armor/Soarin'
Bloomberg/Tom
Tom/Rocky
Ahuitzotl/Discord
Discord/Steven Magnet
Noteworthy[Blues]/Doctor Whooves
Mr. Carrot Cake/Lickety Split
[older]Pound Cake/Lickety Split
Uncle Orange/Pinkie's Dad
Happy Trails/Prairie Tune
Twilight's Dad/Rarity's Dad
Baritone/Noteworth [Blues]
Bruce Mane/Anyone
Ceasar/Caboose
Ceaser/Braeburn
Cherry Strudel/Black Stone
Colton Vines/Coconut
Concerto/Doctor Whooves
Daven Port/Filthy Rich
Frederick horseshoe pin/Concerto
Hairy Tipper/Filthy Rich
Harp Parish/Concerto
Harold/Ceaser
Horse MD/Doctor Whooves
Horte Cuise/Concerto

PFFFT. http://mlp.wikia.com/wiki/List_of_ponies Just pare every male pony with every other male pony.

How about Big Mac/Soarin'?
I'd like to see that. *hint hint*

Oh, Pokie / and that tennis pony. Darn.

Braeburn and Iron will ;) THAT would be interesting to see!