Nest Egg

   Everyone knows we should all have a nest egg, right?  A cache  of money  put away so we can build a reserve fund. That way enforces our financial security.
   But pictured below is an actual, century-old nest egg, from which our bit of financial strategy gets its name.
   These eggs were placed in the henhouse, to remind the hens where to lay their eggs, and/or to induce them to lay in the first place. Stupid chickens--to be deceived by a hard, cold inanimate object. And we're to emulate them.