So I've learned to be creative with party decorations. Most of them I make myself.
The banners add something special and kids love them. I took an index card and made a pattern to trace, traced onto pink and purple computer paper that I had leftover from my days of teaching high school, cut out the banner, hole punched, then used yarn through the holes. So simple. You can also write on them:
I wrote the birthday girl's name on this one. The ends have paper doilies threaded on.
I also like to use tulle for decorations. And lots of balloons.
I weaved bright pink, light pink, and purple tulle through the light fixture and added balloons to the top. Morgan thought it was magical. I keep the tulle to use for other projects.
The best part about this is that you can do any color combo and you're not at the mercy of whatever a party store has to offer.