Here's the way I decorate my eldest niece's flower girl basket, to match our wedding colors.
I started off with a plain, white basket, from Michael's Craft Store, intended for flower girls.
I purchased ribbon, in our wedding colors:
Using a hot-glue-gun & binder clips (to hold my spot), I attached inch wide purple ribbon to the top of the basket:
I was careful to tuck the ribbon over itself so as not to bunch:
After, I attached the .5 inch ribbon to the bottom boarder of the basket:
Lastly I added an apple green accent stripe of ribbon:
And ta-da! A personalized flower girl basket!
PS: hot glue gun stringies drive me craaaazy!