String of Pearls
(and it's not so common name Senecio rowleyanus)
This is one interesting houseplant.
They are a succulent so it receives the same care as all my cacti (water every 10 days, fertilize every other time), and they have delicate white blooms a couple times a year. Of course, when I first saw one of these plants, I just HAD to pop on of the beads (I have no idea why :)...I was expecting the same outcome as bubble wrap for some reason, but encountered a wet mess with no sound effect. Sad.