We have two good questions that are similar to this this question discusses how good monopods are. And this one talks about tripods under $100. The second was the inspiration for this question.

I am looking for some possibilities for monopods with good stability for Canon XXXD class cameras with mid size telephotos like 70-200's under $100.

An added feature which would be ideal, is the ability to use the monopod as a hiking staff or walking stick.

A friend of mine also mentioned to me that he knew of a tripod which disassembled into two walking sticks and a third part. If you have any information on this, I would be very interested.

Thanks!

Note: This question was a result of a suggestion by Anant after the discussion here.