You want obscure?   Here's obscure (mid 1960s vintage?)

Most agitator washers hold 16 gallons of water
That's a lot, an awful lot of water,
Takes maximum power for all that water,
and The Max is LOADED with power.

When you wash your clothes with Max, my friend,
They'll look so clean and bright,
With most other powders,
To make them look cleaner,
You'd have to wash them TWICE!

(return to first verse ...)

Why in the world that's stuck with me all these years, I'll never know. Yet I can't remember my mobile phone number for the life of me!

siân