I cut stems and put them in front of our fireplace in tall vases! (theinspiredroom.net)
Use tall vases on the table, but rather than have the arrangement above the top of the vase, keep the arrangement inside the vase for a more modern look. (bhg.com)
The mantel below has two tall vases on either side + two matching floral arrangements, creating that cohesive look & bringing symmetry to the space. (housetohomeblog.com)