Hi Mumski,
Firstly HUGE congratulations upon your forthcoming nuptials, hope everything goes well. I’ve found some inexpensive white comfortable looking Lilley (low heeled) wedges with small diamante detailing in sizes 5 through to 9 with one reviewer saying they are large in size. Just the job for standing most of the day. To add a bit more blingy embellishment to the shoes, I also know that Amazon and eBay do crystal rhinestone shoe clips for weddings, parties etc. I attach a picture of the shoes with two ideas for clips though there are lots to choose from. Meantime best wishes for a long and happy marriage.