Princess Celestia x Discord= Princess Swirly Pastel Chaos and Prince Screaming Chaos
Princess Twilight Sparkle x Rainbow Dash= Raining Boom, Blue Lotus, Breezy(daughter of Rainbow Dash and Zephyr Breeze), Princess Starry Darkness
Princess Cadance x Shining Armor= Princess Blue(daughter of Queen Chrysalis and Shining Armor), Princess Crystal Dream, Princess Shattered Hope(daughter of Princess Cadance and King Sombra), Princess Starry Shield
Princess Luna x King Sombra= Princess Poison Moon, Prince Red Moon Gem
Fluttershy x Big Macintosh= Sweet Butterfly and Small Core
Rarity x Spike= Dragora, Dazzling Gem and Cracked Gem
Pinkie Pie x Cheese Sandwich= Icing Sugar and Lil' Cheese