These aren’t even odd ships but when you put them together…?  
Prince Agapio  
Nickname: The onion prince  
Parents: Princess Twilight Sparkle and DiscordGender: …Man  
Species: Alicorn-draconequus hybrid  
Cutie mark: Sparkly onion  
Special talent: Mischief, magic, camoufalge (he has layers, okay?)
 
Younger brother of Prince Polaris. His magic isn’t quite as extreme as his father’s but it is still pretty powerful. He’s especially good at blending to his surroundings. He often does it to surprise other ponies who pass his hiding place. Agapio really likes his mother the best.
 
Prince Polaris  
Nickname: Polaris  
Parents: Princess Twilight Sparkle and TrixieGender: Stallion  
Species: UnicornCutie mark: One pink five-pointed star with two smaller white ones  
Special talent: Astronomy  
Older brother of Prince Agapio. Trixie expected a lot from him, after all he was the great son of two MOST powerful ponies in Equestria. But Polaris turned out to be quite forgettable character. He never made any number of himself and when his brother was born, he was just glad that he was off the spotlight. Oh boy did it bother Trixie. Twilight loves his boring son very much.
 
Trixie x Twilight x Discord forms one big happy polyship. Most of the time anyway.