Prepare for unexpected vet bills
This age-old activity has a habit of stumping humans despite having been around for a few centuries at this point, but it will provide your dog a great brain teasing activity one way or another. Simple get a hold of three cups, place your dog's favorite treat inside one of them, and then shift the cups around before prompting your dog to choose the cup they think their treat is underneath.
This activity is very interesting because it recreates the sensation of having to hunt for food in the wild in the comfort of your own home. The idea behind the Wooly Snuffle Mat is that you gather up your dog's favorite treats and you then hide them inside the mat so that they'll have to sniff and scrounge about to find their treats.