They really bring glamor, and awe into any space, and I love the effect!
Since the medallions are pretty pricey, I would think that another, more practical, option would be stencils- like this one from Centsational Girl

Why, hello there amazing teal chandelier! You look simply Fabulous on that medallion!!
Quite over-scaled, but I just love the effect of this massive medallion above the spa... Relaxing, beautiful, and gorgeous!
I love the look of this simple, homemade medallion made with a picture frame and some music sheets. A great way of adding personality to your ceiling as well!I do love the way the medallions look on the ceiling, but they are just so beautiful that I was thinking they could easily be used for something else- anything really- but just used as art work would be amazing. I found a couple pics of just that...
Do It Yourself Magazine
Nuestra Vida DulceFabulous! All the way around!
Have you seen medallions used in any other interesting way?