I have several and it all depends on who I'm around as to what I am being called.
Most shorten Jennifer to Jen. Which drives my mother crazy.
Baseball/softball teammates or associated w/the teams call me HooHoo or JD.
When DH and I started dating, his group of friends had 3 Tony's, so they always refered to each other by last names, so when were are around them, they call me either Hoov or Hoover (maiden name).
DH and the kids will call me boo-boo or Moose. But they all know that if I ever hear them calling me Moose outside of the house, that they may not make it back home.