Dante
Disney
Destiny
Dessie
Diplomat
Diablo (perhaps not think it means Devil)
Dolly
Daisy
Dilbert
Dotty
Dopey
Doris
Dot
Dave!!!
Damien
Drago
Diddy
Daz
Dino
Dia
Dwain
Derek
Dennis
no ones mentioned Delilah...
Then when its been a bad pony.. you can shout "why why why Delilah"
OR
When its been a good pony.. you can shout "my my my Delilah"