I too am sorry to hear of the loss of your dog tags. I am going to move your post to the Military Life board in hopes that other members will chime in! I hope someone who has had to replace theirs can give you a recommendation.
Thank you for your service and for taking the time to post here in community!
Oh man, @Grandpa Hot wheels, please know that we truly appreciate your service to country, so we're sorry to hear what happened. While we don't offer this, we do recommend to contact local companies that offer such services and they're easily found online. Hope this helps! ~ Stacy