I'm not familiar with succulents and someone on the ID forum is looking for names of a couple of pretty little plants. I thought maybe some of you more knowledgeable folks might be able to help. Here's the thread with photo's of Jan's plants that she is trying to identify:

The thread "Graptopetalum; two for ID" in Plant ID forum

I'd say Graptopetalum (maybe 'Ghosty') and/or perhaps X Graptoveria or cultivar thereof. But as they said, the looks of them can change as they grow. At least mine do. You can look at them at different times of the year and not think it's the same plant. Sun and shade make a big difference as well. Sometimes the flower can tell the tale and make for an ID. :)

One of the Graptosedums or Sedeverias are also possibilities for the bottom one. There are so many crosses (X) among the succulents due to the fact that they cross so easily.

http://crassulaceae.net/forum/...