since he's MIA nowadays, i don't think you can get them anymore. but if you can find anyone who can cut plastic, it's really easy. just get it cut, pull out the red lense, stick on the new lense with clear silicone.
: my sidemarkers from using too high of a wattage bulb. Lets just say my sidemarkers aren;t completely flat anymore :p
: The bulb basically burned a hole through the red lens! But that just gave me a reason to go ahead and make my own clear lens to replace the red one :) Let me know if you need to know how to go about doing it in detail.