Here is this do it yourself kiwi nail tutorial. You can also mix other colors in as you please.
All you need is
Green nail polish
black nail polish
white nail polish
1.start off with round, clean nails, and paint the kiwi green base
2. draw white ovals in the middle of your nails
3. decorate around the white and you have kiwis!
Refer to the picture for more guidance.