Watch the kittens for a couple of days. See how their personalities develop. See what their traits are. Are they active, are they shy, playful and "crazy" or like to play on their own. Then after a couple of days you can give them their own unique names not only based on the aforementioned but also on their color(s) and markings. Congratulations from one who rescues abandoned and injured cats and kittens. Have fun!