Are you sick of that boring old horn? Can’t score the evil eye from chick joggers? Horntones MP3 will without a doubt garner some stares. Just install and upload MP3s of your choice to the devices 256MB of memory. Up to 10 different tones can be be assigned to the Horntones’ triggers, and if the 256MB doesn’t meet your quota, than jam in a USB memory stick. To be clear, this doesn’t replace your car’s stock horn – you’ll still be able to pass inspection at the DMV.
Available here for $300.