I got this idea from an Etsy shop called SportBuds (http://www.etsy.com/shop/SportBuds), but I could not get them on time for what I wanted them for (Girlfriend's senior night for soccer). I also didn't have the money to spend $10 on each flower, plus shipping. So I did what any good Maker would do and figured out how to make them myself.
I picked all these up in one trip. The things you will need for this Instructable:
> Silk Roses (However many are needed. I picked up 4, but I could have used more with one soccer ball. I got mine from Ben Franklin, but Michael's also carries them)
> Soccer ball (Or whatever you want to use. Volleyball, baseball, basketball, football, etc.)
> Hot glue gun and sticks
> Scissors or x acto knife
> Super Glue
Flowers were $1.99 each, and I picked up a youth sized soccer ball from Target for $9.93. My total came to $18.45 for just the flowers and ball. I already had the other materials.