Don't know how big you are on white flowers, but I love the idea of silver mirrored vases for centerpieces.
I have so many cheap vases that I don't have a use for, have to do this and make them pretty.
Clear round vase is perfect.
Silver Painted Jars & Bottles Centerpiece but gold instead of silver
Aspire Home Accents 6629 Accents Tianna Home Decor Vases ;Silver
west elm mixed hammered vase collection, $34.00
wedding centerpiece with light pink peonies and white hydrangeas in silver vases
Silver vases silver wedding decor Set of 12 by thepaisleymoon
White Wedding at Houston Station in Nashville | Flowers by Enchanted Florist, Photo by EB Photography + Artistry
A personal favorite from my Etsy shop https://www.etsy.com/listing/452896578/silver-vases-silver-and-royal-blue-baby