I want to use these geometric shaped centerpieces for my reception tables. However, I don't know what size to make. I'm between 7.5" and 9.5". I'm planning on sitting 8 people to a table with plates and napkins on table. I'd like to use the 7.5" size so it would be less floral I needed, but I don't want the tables to look empty or crowded. I'm planning on using a few votive candles as well around it. What size do you suggest for a centerpiece on a 60" round table?