About this 3D model

This is a toy for babies, rounded corners, giving sound when shaken easy to grip and hold. what i don't know is how safe it is for your baby to have this in his/her mouth, considering plastic properties and origin... maybe someone can shed a light on this matter? 1. 0.2 layerheight 2. use any infill, will have a higher pitch sound with a denser model. i printed with 15% infill.