Here is a lovely red and blue centerpiece you can make yourself! What you will need for each centerpiece:

1 red tin or small red box, a small block of floral foam, 6 red silk roses, 6 red silk carnations, 12 silk shasta daisy stems, 4 small bunchs of silk mini daisies, and 4 sprigs of silk blue bells, and a few green filler pieces

1. Place the floral foam in the base and start by creating a shape using the blue bells and mini daisies.

2. Then, use the roses and carnations to create the rounded shape in the middle of arrangement.

3. Fill in the open side spaces with the shasta daisies and insert a few green filler pieces to refine the shape and cover any little holes that are left open. 

Here are some more July 4th worth arrangements and bouquets. Click on a thumbnail to enlarge