I have a succulent that looks similar to your first picture but the leaves are skinnier. I got it at a cactus show but it didn't come with a name tag. I have seen them everywhere, whatever it is, they are very common. (I would post a pic but I am at work right now.) Anyway, I am curious if they put out flowers. Any ideas? Thanks!
If it's Graptopetalum pentandrum or Graptopetalum superbum, then yes; they put out a spray of small, finely detailed flowers that appear as if engraved (epitomizing the Latin name Graptopetalum, which means engraved petals). Mine have flowered a few times, but I think I need to repot; it skipped last season.