Guess The Mystery Thing: Heart On A Shield

Hi!  Time for a new round of Guess The Mystery Thing, my crafty giveaway guessing game.  Who's ready to play? 

Here is the challenge piece, which I named Heart On A Shield:

Here's a second version, with bird.

Can you identify the mysterious shield-like object that forms the pendant base?  What is that shapely thing?

First person to guess correctly will receive a fabulous prize!  (Namely, one of these purty necklaces, OR a goodie bag of random crafty supplies.) 

How it works: leave your guess in the comments.  There'll be two winners: first correct guess and a random winner.  So even if you don't know (or think someone else already got it), you could still win.  If your guess is funny, it might make my Most Creative Honor Roll.

This giveaway is open to anyone, anywhere.  C'mon, join in!

THE ONE AND ONLY RULE

1. UNLESS YOUR EMAIL ADDRESS IS ONE CLICK AWAY IN AN ONLINE PROFILE, PLEASE INCLUDE YOUR EMAIL ADDRESS WITH YOUR GUESS.

Ready?  Set?  Don't forget your contact info...go!   Guess the Mystery Thing!

UPDATE: THIS CHALLENGE IS NOW CLOSED.  CHECK THE NEXT POST FOR THE THRILLING REVEAL!  THANKS FOR PLAYING, EVERYBODY!