Teddy is getting microchipped in 2 weeks with his neuter for the "just in case" factor, also there was a post on here about a stolen puppy and if that ever happens you can notify everywhere in your area and every yorkie will be checked to make sure they are with their owner. I mean it's an unlikely scenario but I feel safer having him chipped its up to you ultimately. As for the chew toy.. its the only one Teddy pays any attention to I'm assuming you're speaking of the rope? I put it under water for a minute and then put it in the freezer and he loves that.. he loves ice too.. he's teething