About 15 years ago, I was heavily into outdoor activities. At the same time I was also about 75 pounds overweight.
frown A friend of mine suggested using a walking stick to help ease the pressure on my knees.

So I went to Lowe's and found 2-1" or 1.5" hardwood dowels about 4 or 5 feet long. Add a rubber crutch tip and a little 550 cord for grip.

Instant walking staff and it could be used for other applications as well, just use your imagination.