Saw this in harland's script, and thought it was funny - 
So I looked up what Acapela had to offer regarding speech .. they have lots of exclamations, emoticons & sound effects.

http://www.acapela-group.com/doc/Vocal%20smileys/excla.html

mouth = Runtime.start("mouth", "AcapelaSpeech")
## non verbal noises
mouth.speakBlocking("#LAUGH02#")
mouth.speakBlocking("#WHISTLE01#")
mouth.speakBlocking("#THROAT02#")
mouth.speakBlocking("#YAWN02#")
mouth.speakBlocking("#SWALLOW01#")
mouth.speakBlocking("#SLEEP01#")
mouth.speakBlocking("#SNEEZE01#")
mouth.speakBlocking("#DONKEY#")
 
 
# Ryan has no exclamations
# so you have to switch voices
# mouth.speakBlocking("Amazing!")
#mouth.speakBlocking("Applause!")
mouth.setVoice("Micah")
mouth.speakBlocking("Ahoy!")
mouth.speakBlocking("Adios!")
 
 
print(mouth.getVoice())