shlynn
They sell bassinet covers online. They come in any colors. Check amazon.com if youre on a budget. another way of doing it is buying ribbons from hobby lobby and trying to dress it up a little that way and you could create your own type of mobile with girly type things such as butterflies and flowers.

KellynMac
Blue and white could be really pretty and girly if you put pink bows on it! Especially if the nursery is pink, if you could find the same color ribbon as the walls, then it would look soooo nice! Here's a pic... not the best example, but you get the idea...it could look really elegant if done the right way!!! :)

y!a finally let me change my name
On some bassinets you can remove the fabric for washing. If you can remove it, then try dying it pink, or just dye the white pink, and tie a pink ribbon around the base.