These blue mosaic tessera based earrings have been very popular. The story behind them is here. A year or so back, I bought a pack of other colours. This is the sample sheet.
Now to add increased flexibility, I have made stud mounts for the tessera and why not other materials? The rght hand side below has some paua shell I cut to size.
Wikipedia has just told me that paua is the New Zealand name, abalone the US name and ormer the UK name for the same genus.
I have some stock, but contact me with your choice.