[Diamond]

It's the latest in bathroom design, called "turtle's back" pattern.

Shhhh! DON'T say this outloud. My wife will hear it and then I'll find myself remodeling the bathroom.

Cordially,

[general_re]

My wife will hear it and then I'll find myself remodeling the bathroom.

You weren't doing anything for the next few weekends, were you? ;)

#5

Composed largely of various oxides of silicon, aluminum, iron...