Interchangeable Headbands

My 5 year old daughter loves to wear headbands and bows in her hair.  I thought it would be nice to make one headband that she could switch out the colors of flowers to match her outfits.  When she saw what I was making she couldn't wait to wear them, that she wore one today to school. Here are some pictures I took today of her and the headband with flowers. I am not sure how many flowers I will put with each headband to sell at this time.

These will be available in the shop soon in sizes newborn through adult! How many flowers do you think I should sell with each headband?