These are my very favorite sound-clips:
THE DINGO
Maybe the dingo ate your baby...What?...The dingo ate your baby! (wave, 74 kb)
OPERA
Kramer singing opera (wave, 57 kb)
BANANAPEEL
Kramer, you threw a bananapeel on a monkey?...Well, he started it! (wave, 57 kb)
Other Seinfeld sounds I enjoy:
Yew (wave, 17 kb)
The Bus (wave, 104kb)
Double dipped the chip (wave, 182 kb)
Oh, yes (wave, 12 kb)
George's laugh (au, 5 kb)
Babkha (wave, 47 kb)
You blew it (wave, 60 kb)
Naked (wave, 176 kb)
The busdriver (wave, 168 kb)
Massage (wave, 167 kb)
Beefo-song (wave, 116 kb)