fillibar

I am looking for one (or both sides) of the telescoping trailer tow mirrors. However I am going to be testing out a project on whatever I can find so I am trying to find them CHEAP. They do not have to even have mirrors, working electrical, anything EXCEPT the housing has to be in working condition, ie: generally intact and can be manually moved back and forth.

Local junkyards and ebay have not helped so far so maybe someone here will have (or know of) something that fits the bill. Thanks!