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.
Table Centerpieces - How Much Are Peonies Per Stem? - EverAfterGuide
Aspire Home Accents 6629 Accents Tianna Home Decor Vases ;Silver
west elm mixed hammered vase collection, $34.00
White Wedding at Houston Station in Nashville | Flowers by Enchanted Florist, Photo by EB Photography + Artistry
Silver Painted Jars & Bottles Centerpiece but gold instead of silver
Silver dipped vases silver wedding decor Set of by thepaisleymoon
A personal favorite from my Etsy shop https://www.etsy.com/listing/452896578/silver-vases-silver-and-royal-blue-baby
Large Mercury Glass Vase Mirrored Vase by PeonyAndPetunia