Shiny things. First thing that came to mind was the incredible 3000 year old jewellery I saw at the Archeological Museum in Athens. Go and check it out if you are visiting the city. Definitely worth it.
There are plenty of souvenir and jewellery shops in the centre of Athens. I have to admit I was attracted by the shiny things a lot. By accident I discovered in a side street off the tourist path (I usually go the opposite direction from all the tourists) a small family run handmade jewellery shop called Zaras. Fell in love with their earring designs and became quite a good customer during my stay.