What should I name my kittens? (:?

I just got new kittens today, And I named one Xya, (pronounced Zya) one Sylvester, and I need two more kitten names. Oh, and the two kittens and Syvelster were to young to sell by themselves so we took the mom too(: Here is some info:
Xya is not in the litter from Chessie, the momma cat, and he is older but still a kitten. He is a tabby , and gold black and gray with a gold teddy bear nose, I call it, because it goes up off his nose and it looks like a teddy bears:)
Chessie is a tabby too and is gold black and gray. She is a tad wild but very slender and tall and pretty(:
Sylvester is a kitten of Chessie’s and is all black and his one eye is not opened yet, and I was wondering if you have a better name for him.
The other two are also striped and one is a boy and the other is a girl. The girl is really small and she is the runt. Not Bella, I already had a cat named bella and had to give her away):
I was thinking about Rocket or Dino, short for dinosaur or Dynomite(:
For the girl I was thinking Gypsy. Not sure though.
Here is what they look like:

http://www.google.com/imgres?imgurl=http://images04.olx.com/ui/4/75/66/68986966_1-Pictures-of-Free-Tabby-Kittens.jpg&imgrefurl=http://kempner.olx.com/free-tabby-kittens-iid-68986966&usg=__TTEgQ0fq3lhQQQyqh-TGccYz-vQ=&h=469&w=625&sz=51&hl=en&start=26&sig2=s6sF8jyWjDM-qLviC1oxHw&tbnid=xKcMe9fG4KT-vM:&tbnh=102&tbnw=136&ei=L2BGTLqIOcL38AbF-pjqBA&prev=/images%3Fq%3Dtabby%2Bkittens%26um%3D1%26hl%3Den%26sa%3DN%26rls%3Dcom.microsoft:en-us:IE-SearchBox%26biw%3D1308%26bih%3D527%26tbs%3Disch:10%2C725&um=1&itbs=1&biw=1308&bih=527

Except the black one ofcourse.
So if you have names, that would be stellar(:

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