Cool off those gums or soothe them with a teether that's BPA and phalate free like the Munchkin Ice Heart Soothing Teether. (twiniversity.com)
What's more, they're always phalate - free, latex - free and free of perfumes, chlorine, and lotions. (tinyfry.com)
However, given the caution with phalate and BPA in teethers and baby toys, it is most advisable that the rattle be made of non-toxic materials. (pregnancy-info.net)