I've used a couple different ones over the years. The one I find myself going back to the most is the Pine Ridge Archery AT-5. It's pretty much universal as it can be used on a tree, or on a standard t-type fence post. And it's rather inexpensive as well. Scroll about 1/2 way down this page - http://www.pineridgearchery.com/newproducts/
I just started to use the Elimatree and love it ! Inexpensive and light weight. It works great for those spots where no tree is or where you have to point the camera away from the sun www.elimatree.com Heres a picture taken off my Elimatree.There are no trees on that side of the plot.
I modded a hanging plant holder you step on the base and it pushes into the ground it really is nice when you dont have a tree in the right spot. I dont use it where we have a lot of people traffic it says steal me real bad.
