Years ago, Diamond's International gave away free "diamond earrings" (chips actually) but still cute for little girls who had pierced ears.
Now they give away a "gold" (plated) charm bracelet but the charm for that port is $5. Of course, you don't have to buy the charm...you can still get the charm bracelet for free.
My youngest son brought one back for his "friend - girl" in the 6th grade. She loved it.