Hayden:
Flutterfly (butterfly)
Daddylions (dandelions)
Leggy-bugs (ladybugs)
Tracktice (her way of saying "track practice")
Lucy:
Cack-ah (cracker)
Mo' (more)
Ghoosh (juice)
He' go (here you go)
MaeMae (phone - when talking to my mother on the phone, I tell Lucy to say hi to Mae-Mae. She does. But now she seems to think that phones are called MaeMae's)