I'm sorry, I misunderstood. You don't want your signature, you want your screen name.

Then I'll add it again, hehe.

I thought for a moment that kiddy means little goat. Maybe you prefer sheep, so it's called "snow sheep" or "sheep sheep". If you like English, it's called "kiddyangel" or Japanese name.

ヒツジの (Happy Sheep)

I wonder if there is anyone you like, hehe.