Coffee mug placed on it's side with wet food inside.
An old coffee mug can be laid on its side and filled with canned food. The mug handle provides stability and keeps the puzzle in place. Put it on a place mat or newspaper and allow the cat to scoop out food with a paw and lick it off. Many cats simply drag the food to the mat and lick it up from there as seen in this video. This can be a little messy, so some sort of place mat is a must!