Title says it all.  I have an old habit of hanging my helmet on the right bar, where my Rostra switch is mounted.  I must’ve inadvertently popped it off lifting my helmet off of the bar.  I checked with Murph, but, so far, I don’t think he’s been able to locate one.  Either one will work.  I’d rather not play $60 plus shipping and tax just for the plastic cover. 

Thanks.