Nebo:

Beebo (I probably call him that more than Nebo )
Boog (came from booger)
Big boy
Curly butt (his tail curls lol..)
Husky boy
Neebers
Neebster
Good boy
Big red dog
Beggar brat

Reggie:

Reg (redge)
Regerd
Regina
Reginold
Schnauzer doggie
Schnoozer
Grumpy old man
Big ears

Sydney:

Syd (I know I call her Syd a lot more than Sydney)
Syddie (like City kinda)
Schnauzer doggie
Schnoozer
Breath smeller (she likes to get RIGHT up in your face and smell your breath!)
Girlie