Jehovah's Witnesses, are pinatas prohibited by your faith?

I'm not here to criticize, I just want clarification. I remember reading in some literature of yours about the origins of pinatas (and found it accurate). Is using pinatas for celebrations considered wrong (as long as they aren't used to celebrate a Christian holy day)? Or is it okay to use a pinata at a party, provided you don't mix the Aztec custom with Jesus? Could you explain why? Thanks for your information or any information about them from anyone who answers.