Succulent Tiny Tuesday

One of the Blippers I met last Saturday was kind enough to give me four cuttings from succulents that she had grown, the originals of which had come from the island of Rhodes, which I have passed through many times on my way to Symi.  This is the top of one of them; I am not renowned for my green fingers but I'm sure you will be pleased to know, Pat, that I haven't managed to kill it yet!

I don't know what the plant is called; any ideas from the gardeners out there?  Thanks to dbifulco for hosting Tiny Tuesday this month.