Anyone wanting a 'cheapo' set of shooting sticks should take a look at this video on utube.
http://www.youtube.com/watch?v=uqsQjpx87zo
When I was in Africa last year my pH had two long hardwood sticks wrapped with an old inner tube and they worked great
I have had a Primos monopod trigger stick for a couple of years and really like it. It isn't as solid as the bi pod sticks I used in Africa but it makes a great hiking staff and can be deployed quickly if you happen to jump a deer while walking to your stand.