Strict office etiquette says no, since it can be misinterpreted as trying to buy his favor. However, if you and your boss have been working together for a long time, or are friends outside of office hours, you can give a very simple token. It’s actually better to give something with very little monetary value, like home-baked cookies, or a bottle of wine, so no one can accuse you of “bribing.” Avoid gifts that are too personal or can be seen as sexual or romantic, and gag gifts are in poor taste. There is a professional line that can never be crossed, even when you think your boss will take it in the right context.