But if you still want to add a girly girl touch to it, get large cheap picture frames and make collages with magazines, old books (things like that – with princesses or whatever they are into) and paste to construction paper (or heavy paper) that matches the bedding. And type out and print their name with Photoshop or Paint (or w/e) to add to the picture too!

Walmart should have the curtains or a valance to match those comforters too. Dont foget the funky colored lamps there too they can add some pop as can bean bag chairs or the soft sculpted chairs found at WM and Target both, kind of L shaped with no legs. There is always rugs too in flower shapes or solid shags.