I recently had a friend tell me about Amber necklaces for your teething baby.  They just need to wear the necklace or bracelet (not necessary to chew on it).  From the mothers that seem to have tried it, they say it is amazing! So I've found a few on Etsy.  I may try one, but have not yet.  The picture is a link to the shop that sales each item. These are all different shops, some of the less expensive that I have found.