Lapidaria margaretae by Succulents Love, via FlickrLooks like stone but is not. Lapidary margarethae is a very attractive miniature, which seems to have been carved in stone. Produces a bright yellow flower. Native of Namibia.
The only reason I want a house (over an apartment) is to have a fun outdoor space that I could actually enjoy on my own (in Florida, it was always too hot, too many bugs, etc.) - I would sooooo use an outdoor space in Seattle!