RAM-B-149Z-GA26U: RAM Bike / Motorcycle Handlebar Mount for Garmin Nuvi 710, ...
I got the Ram mount for my Garmin Nuvi and absolutely love it.  It is very high quality for very little money.  Frankly it looks and feels like it should cost much more than it does.  I like the fact that it comes with a piece to keep the handlebars from getting scratched.    *Edited to add:  I have taken two trips of 800+ miles each on my motorcycle and this mount is a lifesaver.  Keeps the GPS just high enough to be in view but not distracting at all.  It is also rock solid.  Because I ride a cruiser with