A long time ago I posted a photo of a couple of Lithops optica 'Rubra' seedlings. They've grown up a bit.
The color isn't quite right, but you get the picture. Lithops are such fun plants. People often tell me that they're just too hard to grow. Well, they can be a challenge for a beginner - and sometimes even for a seasoned grower. I tell people they're probably going to kill one or two before they catch on, but it's worth the effort. Haven't grown them before? Try them; you just may fall in love with them.