I need some of those things that you stick on glass doors to stop people from accidentally walking into them. My other half, despite his currently throbbing head, refuses to settle for easily available ones like butterflies/snow flakes/Nemo the fish/etc, so I need to find something more subtle and grown-up!

Any ideas where I can buy tasteful/subtle/stylish decals ******? The supplier can be anywhere, as long as they are willing to mail to Australia.