Glass bottles full of rose petals

What would you do with 100's of bottles of Starbucks glass Frappuchino bottles stuffed with fake red rose petals? They look pretty but the bride decided not to use them for centerpiece ideas. Great I will just recycle them, but also have thousands of polyester (pretty) rose petals, is there a way to use them in the bridal shower for something? food riser? Make into large heart shape (where) cannot line walkway or outside of facility due to wind/weather/clean up issues?