I bought Isaac this dish called a slow feeder. It has grooves in it, kind of like a maze. If he pushes the food around to one spot, it gets a little wider and is easier to get his mouth in there. Otherwise, he has to kind of lick the kibble out of the groves with his tongue.
Here is what the dish looks like.
It was really interesting to watch him problem-solve and figure out the best way to get the food out of the grooves.
He hasn't quite figured out that if he pushes the food to the one spot where the grooves widen, it's easier to eat it. I'm sure he will figure it out soon, though.
I think this dish is a great idea to help dogs eat slower and also to work on problem-solving skills at the same time.