Soap bubbles have always captured the imagination of artists as well as of children. We present computer graphics renderings of some small bubble clusters of mathematical interest. A single soap bubble is a perfectly round sphere; it seems that the soap films in (stable) clusters of small numbers of bubbles are always pieces of spheres. We focus on a cluster of six bubbles where this is not the case – in particular its central film is a saddle-shaped minimal surface. My computer-graphics rendering of this cluster dates from 1990. After it was featured last year in Ziegler's new book of mathematical pictures, I returned to it, printing it for exhibition for the first time and describing it here.