Babies and Butterflies

Now that Baby Sister has her own room, I'm dying to decorate. I'm nearly positive that this butterfly bedding is The One. And I've been daydreaming of all the fun butterfly things I can do with a girl's room:

There will most definitely be some sweet little butterfly cutouts on the walls. These are from Pottery Barn Kids Room Accessories, and provide a quick alternative to making your own. Although, I assume a diy approach would be pretty simple.

And wouldn't a little cluster of butterfly lanterns be fun dangling over the windowseat?

Image from Martha Stewart

Now, I suppose I should start thinking about names. Any suggestions?