Today's image is a small growing Aloe cultivar, Aloe aristata 'Tegelberg's Triumph'. It makes for a nice mound of compact leaves, festooned with nice little spiny protuberances. Did I just write that? Oi! I must be getting tired. (It's thought to be a cross of A. aristata x A. erinacea)
Suffice it to say, these fit in nicely with our many haworthias.