Thellos doesn't only count for basic forms like triangles, circles and squares. It's essential in type design, because they apply to every single character in a typeface.
Well, this one is sure to catch everyone' s attention, but, for any weird reason, if you think this is not cool enough, then there is also a version with a floating glass top and a domed pedestal base.
As always there is a trade-off, an interface gives you freedom with regard to the base class, an abstract class gives you the freedom to add new methods later.
