I dunno about a drink for a name. My rat looks like she's drunk because of her ear infection. It might be bad luck.
Here are some I thought of AFTER I named all the babies;
Freckles
Dotti
Atticus
Scout
Oedipus (though he's a dumb literary character)
Cola (I like that one from Jessica)
Insomnia (rats don't sleep)
Stella
Rhubarb
Parsley
Grrr I have to think female names....
Neptune
Lola
Lizzania (I dunno how to spell it)
Snickerdoodle
Iradescent
Opey (esp. if you have a blind rat; it's from opalescence)
Moonshine (if you're a hippie)
You could look for an African website with African names. African names are cool and original!
-Lila