This is a great way to jazz up your empty bottles - particularly if you have interesting shaped ones. I used silicone and small pieces for the mosaic so they wouldn't 'see-saw' with the surface of the bottle not being flat. You can use them as fancy bottles on the table or put fairy lights in them and have them as lamps. An ornate stopper can be a lovely finishing touch.
Has anyone else used bottles for their mosaics?