What can I put in a tall cylinder shaped vase?

Aster need help to clarify doubt about: : What can I put in a tall cylinder shaped vase?
It’s an arrangement of three like vases, all different heights. The shortest has sand with tall flower twigs, making it the tallest.

The medium sized vase has beige aquarium gravel and a sage candle with space left open at the top.

What can I add to the third vase? Ideas?

Try this:

Answer by coralbaby♥♥♥
flowers!

Know better? Leave your own answer in the comments!