Determined_Wolf said:

I love how so many people have these well thought out names meanwhile Diamond chose the name Diamond for himself because his eyes are blue and he likes diamonds and picked the name Darwin for himself because it also starts with a 'd' and he likes rocks.

Spellbound said:

Mion's Birthday can be during the three-week Winter Festival. And he can have a winter themed ball of some sort or he can forgo a large party but he'll still get gifts.

Part of me wants to name the twin something that just means "two" because she's the second twin or if I should stay with the star theme-

Maybe the theme for Mion could be like heaven and hell and people dress in elaborate dresses and suits to be one thing or another? They could wear masks like a masquerade too. I don't know why but I think the theme would just look pretty even if it is not practical or logical. :P