If you want, I have a list of 700 names for calves (20 years doing it with 20 calves a year, all named)... Some I can remember off the top of my head
Ali and Baba
Vegas and Reno (I had a set this morning, those are their names, Vegas was adopted.. with some luck)
Sonar and Radar
Habanero and Jalapeno
Abacus and Calculus
Asterix and Obelix
Bistro and Deli
Potin (a cacophonious noise) and Fracas (we had this pair 2 years ago)
Mahjong and Pingpong
Panzer and Sherman
That about does it for the names for twins I have...