Was there a World War II poster that portrayed a women handing over a
wrench that was captioned something along the lines of "give them
their jobs back."?!  I am trying to find it but am not having any
luck!

Here's a description of a similar poster:

"At the end of the war, propaganda was used to encourage women in
other areas of labor to give their jobs back to veterans.  A poster
portraying a riveter handing over her drill to a veteran is an example
of the propaganda that was used."

http://www.wou.edu/las/socsci/history/enos499paper.doc