While you are shopping for your white ceramic pieces, pick up a basket with perforations around the sides and a solid bottom. It will come in handy when it's time to dry the gift rose buds.
I start by saving all those decadent bags in shoes in a jar so I can add those when I need to dry something. Once I have the basket, I add a paper towel, then the items I want to dry: rose buds, either from a florist or from my garden. I place the basket on top of my refrigerator, where the hot air from the back of the motor helps dry out the buds faster. It also keeps the flowers safe from admiring cat paws. I check once a week, until the buds are dried and ready to arrange in the white ceramic bowl.
If you just want to have the flowers still around, you can also dry them on stems with leaves. Just shape them the way you want them in the end so you don't break the brittle stems once they are dry.
Have you dried rose buds before?