¿Me puede dar más hielo, por favor?
"Ice" in Spanish is "hielo". It is pronounced "ee-AY-low". Please see this site for confirmation of the translation: http://www.answers.com/library/Translations
"Please" in Spanish is "por favor".
To say 'I eat ice cream' in Spanish, you would say 'Como helado.'
Más cervezas, por favor.
"More ice" is translated to "más hielo". If you're asking for it at a restaurant, make sure you remember your "por favor" and "gracias"!
dame más margaritas, porfavor (give me more margaritas, please.)
'take in' is rather ambiguous. Please specify more clearly.
Helado
el hielohielo
More context, please! (Architectural? domestic? furnishing? culinary? etc.)
No más faltas/días libres, por favor
There is no direct translation for "pretty please". Simply say "Por Favor" (please).