Heriba 172 SW string winder BK
OK so you can't really get too excited about a string winder but for what if is this one is great.
It's cheap and it winds strings just as well as any other string winder.
I have used this on everything from a little mandolin through all my fenders and gibsons and it's a real finger saver when I restring the rickenbacker 12 string.
I maintain a dozen instruments, 9 electric and 3 acoustic so this has been in regular use for a couple of years now and it's still going strong with no problems so I haven't any complaints at all and these are highly recommended.