C.D.
How about a grocery store gift certificate so that he can buy things to practice with. Good quality food can get expensive. you can give it in a cute card with a note that you will be a taste tester!! I would stay away from knives- they are a very personal thing. While I am not a chef I am very picky about my knives and other kitchen gadgets. I have also heard from chefs that they have to feel the knives in their hands to get a good idea if they like them and can work with them. It has to do with weight and balance.