I'm bored with my children's names, can I change them?

[Zipitydooda]

Since naming DS3 (9 mo) a great name, I've realised I'm bored with the other 2's names. They are 7 and 4, can I change them to
something more fun and interesting?

D'Eric sounds like Derek. Tres Corrie.

Also you get to say 'I'm sick of D'lot of them' when annoyed

Swap the first letter of their names about;
Zenny, Lscar & Oack (my personal fav, sounds like hocking up phlegm).