Sparkle Rider Motorcycle Bells and Hangers are currently only sold on Amazon.com. If you are a prime member, then for two days only (11/26 and 11/27) you can also get 20% off the bells too!
This motorcycle gifts list is pretty price broad, from super cheap/free, to all-out splurge. And most of these suggestions are good for bikers of all riding styles and even whether they are professional or amateur.