Here's a cool DIY idea for a cat enrichment toy. Glue together a group of toilet paper rolls inside a tissue box and randomly fill the tubes with treats. Your cat will be stimulated when they "hunt" for a treat. So simple and inexpensive.
While some dogs are perfectly happy playing fetch, other dogs need a little bit more. Dogs, especially smarter breeds, need to play games that are not merely for expelling excess energy but stimulate them mentally. With people who need mental stimulation,