I used black and red Tiffany mosaic glass with black grout on a simple IKEA mirror frame.
Overall, I'm pretty pleased with it. It's a nice little mirror. Katrina thinks I should have used a lighter grout (I used black), but I think it would have looked too fractured. I did learn one thing from this project, that I should have 'keystoned' the red swirls. This means I should have cut them at angles to make the curves fit together like an arch. Oh well, each project is a learning experience.