I used to make my own as a boy, but now I modern "trekking poles". They are a pair of three section telescoping aluminum poles (like ski poles).
They make HUGE difference hiking for stability, and ease strain on the knees comming down hill. They help a lot with stream and river crossing as well.
The telescoping feature is mandatory for mountaineering and climbing becasue I can use them on the approach, then shrink them down in stick them in my pack for technical climbing. Also, being able to adjust the length lets me make them longer for downhill, shorter for uphill, or one long and one short for traverses on hills.
The baskets are interchangabe, I have bigger snow baskets for winter and little mud baskets for summer.
Mine are about 10 years old, but all the new ones have shock absorber springs in them to relieve strain on the shoulders and elbows. (Getting a little over enginieered! - Although on steep downhill, or crossing mushy ice when I put a lot of weight on them, my elbows feel it at the end of day.)
Will