I've never seen anything remotely close to this puzzle ball you're describing, and believe me I've looked at everything.. I'll have to keep looking I guess.. If all else fails I'll mail order one from the US, I'll bet he would love it.. If I put his kong upstairs he will push it around until it falls down the stairs, then he will go get it, and bring it back up so he runs up and down the stairs 20 times with each stuffing.. If I put it downstairs though he'll stay there.. Almost as if he feels like he has to keep it wherever I put it
It's good for exercise anyway..
I might get some more of the mint denta-bones.. They took him a while to get through and he really liked them. I've been having a hard time finding the ingredients though..
I don't know.. It's so hard to keep him entertained all the time
I'm sure you completely understand, having a younger one yourself..
Yeah, it's wierd about the fruit.. I've never seen a dog that loves fruit so much. He eats it (but I'm very careful that he never gets any seeds. I know apple seeds are toxic so I don't want to take chances with other ones). Any fruits and veggies I've ever let him try.. If it's one he hasn't tried before he'll put it on the floor and sniff it and push it around before eating it, but once he knows it it's gone almost instantly.. The other day I was making veggie cubes for my birds. I put all different kinds of veggies and a little fruit in the food processor to chop it up really small (bite-sized for budgies) and then put it in a mini ice cube tray to freeze, for the days I just don't have time to chop up the birds' veggies.. There was extra this time so I put it in a bowl and let Kaiser at it, and he just loved it.. I guess it's good provided he doesn't get too much, it should be healthy for him in some way even though he's a carnivore, right? On the raw board they said they feed the dogs some veggies..
For his kong I was talking to a trainer at the local kennel club that gave me some awesome suggestions.. I shredded up just a bit of cheese, maybe 1/8 cup and mixed it with kibble and stuffed his kong.. Then I melted it in the microwave and put it in the freezer until it cooled down.. He went nuts over it! I don't want to give him that one often though because I can't imagine cheese is too good for him..
For another one I used some of the left over veggie-cube mix I made and mixed it with his kibble, then stuffed the kong and froze it.. He loved it
I don't know if it would be useful to you but here's the website for the "recipes" 
http://www.wagntrain.ca/Adobe/kong.pdf
kong stuffing ideas