A little purse for a little girl

made this purse for my 6 year old niece.  It's slightly scary, because 6 year olds are not like they used to be... they are waaaay cooler.  (Or, at least, cooler than me). 
This purse is decidedly girly and young-ish, so hopefully she won't see it, roll her eyes and ask where her Fendi is.

I didn't use a pattern, just cut a shape out of flannel and a lining from a thrifted man's shirt, and went from there. 

Now, what to put in it?