Christie,
You should! It's a lot of fun, and there's room for expeiramentation because these plants really alow for some interesting shapes to be successful. Hardy succulents are the best! Cynda from the nursery "Perennial Obsessions" also makes ceramic planters with sempervivum. Her work is fantastic, she uses glazes and textures well to embellish her work. Like my own, she tends to sculpt irregular shapes. Our work differs in that she uses more finished edges and surface patterning, where I try to keep my texture as random as possible and my surfaces are usually rough.
-Sol Z
