There are several "magic props" designed to do this, so your best bet would be to talk with a magic shop and see what they have.
However... the other side of the coin is that not all magic dealers are familiar with magic as used to support a story instead of being the story. Their job is to sell magic tricks, so they may want to sell you a prop that doesn't work in the context of the story, or with the Fairy Godmother's character. There's a huge difference between a stage magician and a character like Harry Potter, and you don't want to pull the audience away from the story by having a "really magical" character come across like she's doing a "magic trick."
I have a long background in stage magic, but, every time a question like this comes up, I try to steer the production away from "magic tricks" and into theatrical techniques. So I really like the two suggestions above: they're relatively simple and keep the focus on the character. :-)
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George F. Ledo
Set designer
www.setdesignandtech.wordpress.comwww.georgefledo.net
Original Message:
Sent: 02-07-2016 10:16
From: Lisa Singleterry
Subject: Making flowers appear on stage
I am working on Cinderella and the fairy godmother is supposed to "magically" make flowers appear in a vase. Has anyone done a trick like this? Any tips on how to make it happen on our stage? I'm sure there's a way to rig it, I just don't know what it is!!