Make your own.
I saw this method a few years ago, not sure where, but is one method of making shooting sticks. First get 2 fiberglass electric fence posts from a farm and ranch supply house and a 6" piece of 3/8" ID rubber hose. Total cost less than $5.
Tools, you will need a sharp knife or an Xacto knife to cut the hose, a magic marker to mark your cuts and a ruler.
You will cut out a portion of the middle of the hose. In the middle mark 2" and 1/3 of the outside diameter of the hose, a 2" long rectangle. This is your cut line.
The cut out section removed from your hose.
Insert the top of one of the fiberglass poles into the cut opening and slide it about 6" in to the hose. Then do the same with the other fiberglass pole.
Cross the poles, and you now have a pair of shooting sticks.
To keep them tight and add more stability I add a castration band, these are available at farm and ranch supply houses. Or you can use a heavy duty rubber band. These also serve a dual purpose in that when you move from place to place, you can slide the band down the sticks and it keeps them together so they don't flop around.
Supplies and tool list
2 fiberglass electric fence poles
1 piece of 3/8" ID rubber hose
1 castration band or heavy rubber band