I know it is made by Kong, but the closest thing I can find on line is called the Kong Wobbler. I sometimes put Huey's kibble in it. He is much more interested in eating when he gets to work/play for it. As for the cereal, I know they can eat honey nut cheerios, but I wanted to give him more than 1 or 2 pieces and didn't want him to have all that sugar, so I put some Special K in it. He loves it, and he has to work harder to get the corn or rice flakes out than the small pieces of cheerios or kibble. He brings it to me all the time, hoping I will fill it up for him!
I bought this one at Petsmart.