Magnets or Coasters
One magnet, or a set of refrigerator magnets, celebrating your friend's love of jazz will keep him thinking about the music. Pick a magnet that showcases a saxophone, drum set or a cool scene with the word "jazz" written across it. Or, you can get your friend a set of drink coasters, so he can show off his love of jazz when friends come over.
Figurines or Ornaments
You can give your friend something jazz-related that is purely for decoration. Many artistic figurines are available that show a character playing an instrument. Figurines of a trumpet, a stand-up bass or sax would also be suitable gifts. For a more useful figurine, give your friend a Christmas ornament that celebrates jazz.
Clothing
Your friend can wear his heart on his sleeve with a jazz-inspired T-shirt, hat or necktie. You can give him clothing that commemorates a particular jazz performer, such as Miles Davis, or a style, like New Orleans jazz.
Car Accessories
Give a key chain, license plate holder or bumper sticker that lets your friend scream out her love for jazz. You can go even further and purchase a music note or microphone charm that she can hang from the rear-view mirror.