Another option with the loud low-note sound. It has worked great on two of my HD's and gives 'em a "manly" low note sound instead of that meep meep sound high-note sound the stock horn has. Price is right too!!
The FIAMM horn is probably an easier and cheaper option than the Wolo or Stebel as the latter needs a relay and the FIAMM is plug & go. I had a Stebel on a previous bike, and they are reat attention getters, but finding a place to mount them can be tricky.
'09 Kingpin 8Ball
'06 HD Road King
'06 Vulcan 900 Classic
Yep; this is one of those times when function over form rules. I saw a similar one on ebay for about $20 but it was chromed and it look like the opening faced down instead of sideways which would be better for rain.
I found a set of clock and thermometer stick-on/glue-on for the JP and they turned out great for $63 delivered. The 3M double-sided tape will work but I'm going to put my hot glue gun to some use as well.